diff --git a/src/MyWebLog.Data/Category.cs b/src/MyWebLog.Data/Category.cs
new file mode 100644
index 0000000..c472dec
--- /dev/null
+++ b/src/MyWebLog.Data/Category.cs
@@ -0,0 +1,42 @@
+namespace MyWebLog.Data;
+
+/// <summary>
+/// A category under which a post may be identfied
+/// </summary>
+public class Category
+{
+    /// <summary>
+    /// The ID of the category
+    /// </summary>
+    public string Id { get; set; } = "";
+
+    /// <summary>
+    /// The displayed name
+    /// </summary>
+    public string Name { get; set; } = "";
+
+    /// <summary>
+    /// The slug (used in category URLs)
+    /// </summary>
+    public string Slug { get; set; } = "";
+
+    /// <summary>
+    /// A longer description of the category
+    /// </summary>
+    public string? Description { get; set; } = null;
+
+    /// <summary>
+    /// The parent ID of this category (if a subcategory)
+    /// </summary>
+    public string? ParentId { get; set; } = null;
+
+    /// <summary>
+    /// The parent of this category (if a subcategory)
+    /// </summary>
+    public Category? Parent { get; set; } = default;
+
+    /// <summary>
+    /// The posts assigned to this category
+    /// </summary>
+    public ICollection<Post> Posts { get; set; } = default!;
+}
diff --git a/src/MyWebLog.Data/Comment.cs b/src/MyWebLog.Data/Comment.cs
new file mode 100644
index 0000000..bdcbded
--- /dev/null
+++ b/src/MyWebLog.Data/Comment.cs
@@ -0,0 +1,62 @@
+namespace MyWebLog.Data;
+
+/// <summary>
+/// A comment on a post
+/// </summary>
+public class Comment
+{
+    /// <summary>
+    /// The ID of the comment
+    /// </summary>
+    public string Id { get; set; } = "";
+
+    /// <summary>
+    /// The ID of the post to which this comment applies
+    /// </summary>
+    public string PostId { get; set; } = "";
+
+    /// <summary>
+    /// The post to which this comment applies
+    /// </summary>
+    public Post Post { get; set; } = default!;
+
+    /// <summary>
+    /// The ID of the comment to which this comment is a reply
+    /// </summary>
+    public string? InReplyToId { get; set; } = null;
+
+    /// <summary>
+    /// The comment to which this comment is a reply
+    /// </summary>
+    public Comment? InReplyTo { get; set; } = default;
+
+    /// <summary>
+    /// The name of the commentor
+    /// </summary>
+    public string Name { get; set; } = "";
+
+    /// <summary>
+    /// The e-mail address of the commentor
+    /// </summary>
+    public string Email { get; set; } = "";
+
+    /// <summary>
+    /// The URL of the commentor's personal website
+    /// </summary>
+    public string? Url { get; set; } = null;
+
+    /// <summary>
+    /// The status of the comment
+    /// </summary>
+    public CommentStatus Status { get; set; } = CommentStatus.Pending;
+
+    /// <summary>
+    /// When the comment was posted
+    /// </summary>
+    public DateTime PostedOn { get; set; } = DateTime.UtcNow;
+
+    /// <summary>
+    /// The text of the comment
+    /// </summary>
+    public string Text { get; set; } = "";
+}
diff --git a/src/MyWebLog.Data/Enums.cs b/src/MyWebLog.Data/Enums.cs
new file mode 100644
index 0000000..3eecc51
--- /dev/null
+++ b/src/MyWebLog.Data/Enums.cs
@@ -0,0 +1,47 @@
+namespace MyWebLog.Data;
+
+/// <summary>
+/// The source format for a revision
+/// </summary>
+public enum RevisionSource
+{
+    /// <summary>Markdown text</summary>
+    Markdown,
+    /// <summary>HTML</summary>
+    Html
+}
+
+/// <summary>
+/// A level of authorization for a given web log
+/// </summary>
+public enum AuthorizationLevel
+{
+    /// <summary>The user may administer all aspects of a web log</summary>
+    Administrator,
+    /// <summary>The user is a known user of a web log</summary>
+    User
+}
+
+/// <summary>
+/// Statuses for posts
+/// </summary>
+public enum PostStatus
+{
+    /// <summary>The post should not be publicly available</summary>
+    Draft,
+    /// <summary>The post is publicly viewable</summary>
+    Published
+}
+
+/// <summary>
+/// Statuses for post comments
+/// </summary>
+public enum CommentStatus
+{
+    /// <summary>The comment is approved</summary>
+    Approved,
+    /// <summary>The comment has yet to be approved</summary>
+    Pending,
+    /// <summary>The comment was unsolicited and unwelcome</summary>
+    Spam
+}
diff --git a/src/MyWebLog.Data/MyWebLog.Data.csproj b/src/MyWebLog.Data/MyWebLog.Data.csproj
new file mode 100644
index 0000000..132c02c
--- /dev/null
+++ b/src/MyWebLog.Data/MyWebLog.Data.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+</Project>
diff --git a/src/MyWebLog.Data/Page.cs b/src/MyWebLog.Data/Page.cs
new file mode 100644
index 0000000..e1b3dd7
--- /dev/null
+++ b/src/MyWebLog.Data/Page.cs
@@ -0,0 +1,62 @@
+namespace MyWebLog.Data;
+
+/// <summary>
+/// A page (text not associated with a date/time)
+/// </summary>
+public class Page
+{
+    /// <summary>
+    /// The ID of this page
+    /// </summary>
+    public string Id { get; set; } = "";
+
+    /// <summary>
+    /// The ID of the author of this page
+    /// </summary>
+    public string AuthorId { get; set; } = "";
+
+    /// <summary>
+    /// The author of this page
+    /// </summary>
+    public WebLogUser Author { get; set; } = default!;
+
+    /// <summary>
+    /// The title of the page
+    /// </summary>
+    public string Title { get; set; } = "";
+
+    /// <summary>
+    /// The link at which this page is displayed
+    /// </summary>
+    public string Permalink { get; set; } = "";
+
+    /// <summary>
+    /// The instant this page was published
+    /// </summary>
+    public DateTime PublishedOn { get; set; } = DateTime.MinValue;
+
+    /// <summary>
+    /// The instant this page was last updated
+    /// </summary>
+    public DateTime UpdatedOn { get; set; } = DateTime.MinValue;
+
+    /// <summary>
+    /// Whether this page shows as part of the web log's navigation
+    /// </summary>
+    public bool ShowInPageList { get; set; } = false;
+
+    /// <summary>
+    /// The current text of the page
+    /// </summary>
+    public string Text { get; set; } = "";
+
+    /// <summary>
+    /// Permalinks at which this page may have been previously served (useful for migrated content)
+    /// </summary>
+    public ICollection<PagePermalink> PriorPermalinks { get; set; } = default!;
+
+    /// <summary>
+    /// Revisions of this page
+    /// </summary>
+    public ICollection<PageRevision> Revisions { get; set; } = default!;
+}
diff --git a/src/MyWebLog.Data/Permalink.cs b/src/MyWebLog.Data/Permalink.cs
new file mode 100644
index 0000000..b36ceca
--- /dev/null
+++ b/src/MyWebLog.Data/Permalink.cs
@@ -0,0 +1,49 @@
+namespace MyWebLog.Data;
+
+/// <summary>
+/// A permalink which a post or page used to have
+/// </summary>
+public abstract class Permalink
+{
+    /// <summary>
+    /// The ID of this permalink
+    /// </summary>
+    public string Id { get; set; } = "";
+
+    /// <summary>
+    /// The link
+    /// </summary>
+    public string Url { get; set; } = "";
+}
+
+/// <summary>
+/// A prior permalink for a page
+/// </summary>
+public class PagePermalink : Permalink
+{
+    /// <summary>
+    /// The ID of the page to which this permalink belongs
+    /// </summary>
+    public string PageId { get; set; } = "";
+
+    /// <summary>
+    /// The page to which this permalink belongs
+    /// </summary>
+    public Page Page { get; set; } = default!;
+}
+
+/// <summary>
+/// A prior permalink for a post
+/// </summary>
+public class PostPermalink : Permalink
+{
+    /// <summary>
+    /// The ID of the post to which this permalink belongs
+    /// </summary>
+    public string PostId { get; set; } = "";
+
+    /// <summary>
+    /// The post to which this permalink belongs
+    /// </summary>
+    public Post Post { get; set; } = default!;
+}
diff --git a/src/MyWebLog.Data/Post.cs b/src/MyWebLog.Data/Post.cs
new file mode 100644
index 0000000..f2afe39
--- /dev/null
+++ b/src/MyWebLog.Data/Post.cs
@@ -0,0 +1,72 @@
+namespace MyWebLog.Data;
+
+/// <summary>
+/// A web log post
+/// </summary>
+public class Post
+{
+    /// <summary>
+    /// The ID of this post
+    /// </summary>
+    public string Id { get; set; } = "";
+
+    /// <summary>
+    /// The ID of the author of this post
+    /// </summary>
+    public string AuthorId { get; set; } = "";
+
+    /// <summary>
+    /// The author of the post
+    /// </summary>
+    public WebLogUser Author { get; set; } = default!;
+
+    /// <summary>
+    /// The status
+    /// </summary>
+    public PostStatus Status { get; set; } = PostStatus.Draft;
+
+    /// <summary>
+    /// The title
+    /// </summary>
+    public string Title { get; set; } = "";
+
+    /// <summary>
+    /// The link at which the post resides
+    /// </summary>
+    public string Permalink { get; set; } = "";
+
+    /// <summary>
+    /// The instant on which the post was originally published
+    /// </summary>
+    public DateTime? PublishedOn { get; set; } = null;
+
+    /// <summary>
+    /// The instant on which the post was last updated
+    /// </summary>
+    public DateTime UpdatedOn { get; set; } = DateTime.MinValue;
+
+    /// <summary>
+    /// The text of the post in HTML (ready to display) format
+    /// </summary>
+    public string Text { get; set; } = "";
+
+    /// <summary>
+    /// The Ids of the categories to which this is assigned
+    /// </summary>
+    public ICollection<Category> Categories { get; set; } = default!;
+
+    /// <summary>
+    /// The tags for the post
+    /// </summary>
+    public ICollection<Tag> Tags { get; set; } = default!;
+
+    /// <summary>
+    /// Permalinks at which this post may have been previously served (useful for migrated content)
+    /// </summary>
+    public ICollection<PostPermalink> PriorPermalinks { get; set; } = default!;
+
+    /// <summary>
+    /// The revisions for this post
+    /// </summary>
+    public ICollection<PostRevision> Revisions { get; set; } = default!;
+}
diff --git a/src/MyWebLog.Data/Revision.cs b/src/MyWebLog.Data/Revision.cs
new file mode 100644
index 0000000..cd50875
--- /dev/null
+++ b/src/MyWebLog.Data/Revision.cs
@@ -0,0 +1,59 @@
+namespace MyWebLog.Data;
+
+/// <summary>
+/// A revision of a page or post
+/// </summary>
+public abstract class Revision
+{
+    /// <summary>
+    /// The ID of this revision
+    /// </summary>
+    public string Id { get; set; } = "";
+
+    /// <summary>
+    /// When this revision was saved
+    /// </summary>
+    public DateTime AsOf { get; set; } = DateTime.UtcNow;
+
+    /// <summary>
+    /// The source language (Markdown or HTML)
+    /// </summary>
+    public RevisionSource SourceType { get; set; } = RevisionSource.Html;
+
+    /// <summary>
+    /// The text of the revision
+    /// </summary>
+    public string Text { get; set; } = "";
+}
+
+/// <summary>
+/// A revision of a page
+/// </summary>
+public class PageRevision : Revision
+{
+    /// <summary>
+    /// The ID of the page to which this revision belongs
+    /// </summary>
+    public string PageId { get; set; } = "";
+
+    /// <summary>
+    /// The page to which this revision belongs
+    /// </summary>
+    public Page Page { get; set; } = default!;
+}
+
+/// <summary>
+/// A revision of a post
+/// </summary>
+public class PostRevision : Revision
+{
+    /// <summary>
+    /// The ID of the post to which this revision applies
+    /// </summary>
+    public string PostId { get; set; } = "";
+
+    /// <summary>
+    /// The post to which this revision applies
+    /// </summary>
+    public Post Post { get; set; } = default!;
+}
diff --git a/src/MyWebLog.Data/Tag.cs b/src/MyWebLog.Data/Tag.cs
new file mode 100644
index 0000000..28f07ef
--- /dev/null
+++ b/src/MyWebLog.Data/Tag.cs
@@ -0,0 +1,17 @@
+namespace MyWebLog.Data;
+
+/// <summary>
+/// A tag
+/// </summary>
+public class Tag
+{
+    /// <summary>
+    /// The name of the tag
+    /// </summary>
+    public string Name { get; set; } = "";
+
+    /// <summary>
+    /// The posts with this tag assigned
+    /// </summary>
+    public ICollection<Post> Posts { get; set; } = default!;
+}
diff --git a/src/MyWebLog.Data/WebLogDbContext.cs b/src/MyWebLog.Data/WebLogDbContext.cs
new file mode 100644
index 0000000..afbcd8f
--- /dev/null
+++ b/src/MyWebLog.Data/WebLogDbContext.cs
@@ -0,0 +1,69 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace MyWebLog.Data;
+
+/// <summary>
+/// Data context for web log data
+/// </summary>
+public sealed class WebLogDbContext : DbContext
+{
+    /// <summary>
+    /// The categories for the web log
+    /// </summary>
+    public DbSet<Category> Categories { get; set; } = default!;
+
+    /// <summary>
+    /// Comments on posts
+    /// </summary>
+    public DbSet<Comment> Comments { get; set; } = default!;
+
+    /// <summary>
+    /// Pages
+    /// </summary>
+    public DbSet<Page> Pages { get; set; } = default!;
+
+    /// <summary>
+    /// Web log posts
+    /// </summary>
+    public DbSet<Post> Posts { get; set; } = default!;
+
+    /// <summary>
+    /// Post tags
+    /// </summary>
+    public DbSet<Tag> Tags { get; set; } = default!;
+
+    /// <summary>
+    /// The users of the web log
+    /// </summary>
+    public DbSet<WebLogUser> Users { get; set; } = default!;
+
+    /// <summary>
+    /// The details for the web log
+    /// </summary>
+    public DbSet<WebLogDetails> WebLogDetails { get; set; } = default!;
+
+    /// <summary>
+    /// Constructor
+    /// </summary>
+    /// <param name="options">Configuration options</param>
+    public WebLogDbContext(DbContextOptions<WebLogDbContext> options) : base(options) { }
+
+    /// <inheritdoc />
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        base.OnModelCreating(modelBuilder);
+
+        // Tag and WebLogDetails use Name as its ID
+        modelBuilder.Entity<Tag>().HasKey(t => t.Name);
+        modelBuilder.Entity<WebLogDetails>().HasKey(wld => wld.Name);
+
+        // Index slugs and links
+        modelBuilder.Entity<Category>().HasIndex(c => c.Slug);
+        modelBuilder.Entity<Page>().HasIndex(p => p.Permalink);
+        modelBuilder.Entity<Post>().HasIndex(p => p.Permalink);
+
+        // Link "author" to "user"
+        modelBuilder.Entity<Page>().HasOne(p => p.Author).WithMany(wbu => wbu.Pages).HasForeignKey(p => p.AuthorId);
+        modelBuilder.Entity<Post>().HasOne(p => p.Author).WithMany(wbu => wbu.Posts).HasForeignKey(p => p.AuthorId);
+    }
+}
diff --git a/src/MyWebLog.Data/WebLogDetails.cs b/src/MyWebLog.Data/WebLogDetails.cs
new file mode 100644
index 0000000..b891669
--- /dev/null
+++ b/src/MyWebLog.Data/WebLogDetails.cs
@@ -0,0 +1,37 @@
+namespace MyWebLog.Data;
+
+/// <summary>
+/// The details about a web log
+/// </summary>
+public class WebLogDetails
+{
+    /// <summary>
+    /// The name of the web log
+    /// </summary>
+    public string Name { get; set; } = "";
+
+    /// <summary>
+    /// A subtitle for the web log
+    /// </summary>
+    public string? Subtitle { get; set; } = null;
+
+    /// <summary>
+    /// The default page ("posts" or a page Id)
+    /// </summary>
+    public string DefaultPage { get; set; } = "";
+
+    /// <summary>
+    /// The path of the theme (within /views/themes)
+    /// </summary>
+    public string ThemePath { get; set; } = "";
+
+    /// <summary>
+    /// The URL base
+    /// </summary>
+    public string UrlBase { get; set; } = "";
+
+    /// <summary>
+    /// The time zone in which dates/times should be displayed
+    /// </summary>
+    public string TimeZone { get; set; } = "";
+}
diff --git a/src/MyWebLog.Data/WebLogUser.cs b/src/MyWebLog.Data/WebLogUser.cs
new file mode 100644
index 0000000..075e83f
--- /dev/null
+++ b/src/MyWebLog.Data/WebLogUser.cs
@@ -0,0 +1,57 @@
+namespace MyWebLog.Data;
+
+/// <summary>
+/// A user of the web log
+/// </summary>
+public class WebLogUser
+{
+    /// <summary>
+    /// The ID of the user
+    /// </summary>
+    public string Id { get; set; } = "";
+
+    /// <summary>
+    /// The user name (e-mail address)
+    /// </summary>
+    public string UserName { get; set; } = "";
+
+    /// <summary>
+    /// The user's first name
+    /// </summary>
+    public string FirstName { get; set; } = "";
+
+    /// <summary>
+    /// The user's last name
+    /// </summary>
+    public string LastName { get; set; } = "";
+
+    /// <summary>
+    /// The user's preferred name
+    /// </summary>
+    public string PreferredName { get; set; } = "";
+
+    /// <summary>
+    /// The hash of the user's password
+    /// </summary>
+    public string PasswordHash { get; set; } = "";
+
+    /// <summary>
+    /// Salt used to calculate the user's password hash
+    /// </summary>
+    public Guid Salt { get; set; } = Guid.Empty;
+
+    /// <summary>
+    /// The URL of the user's personal site
+    /// </summary>
+    public string? Url { get; set; } = null;
+
+    /// <summary>
+    /// Pages written by this author
+    /// </summary>
+    public ICollection<Page> Pages { get; set; } = default!;
+
+    /// <summary>
+    /// Posts written by this author
+    /// </summary>
+    public ICollection<Post> Posts { get; set; } = default!;
+}
diff --git a/src/MyWebLog.sln b/src/MyWebLog.sln
new file mode 100644
index 0000000..5251070
--- /dev/null
+++ b/src/MyWebLog.sln
@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.1.32210.238
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{6EC3EE1D-3C4E-46DD-8F32-0CC8E7565705}") = "MyWebLog", "MyWebLog\MyWebLog.fsproj", "{2E5E2346-25FE-4CBD-89AA-6148A33DE09C}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MyWebLog.Data", "MyWebLog.Data\MyWebLog.Data.csproj", "{0177C744-F913-4352-A0EC-478B4B0388C3}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{2E5E2346-25FE-4CBD-89AA-6148A33DE09C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{2E5E2346-25FE-4CBD-89AA-6148A33DE09C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{2E5E2346-25FE-4CBD-89AA-6148A33DE09C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2E5E2346-25FE-4CBD-89AA-6148A33DE09C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{0177C744-F913-4352-A0EC-478B4B0388C3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0177C744-F913-4352-A0EC-478B4B0388C3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0177C744-F913-4352-A0EC-478B4B0388C3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0177C744-F913-4352-A0EC-478B4B0388C3}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {70EEF0F4-8709-44A8-AD9B-24D1EB84CFB4}
+	EndGlobalSection
+EndGlobal