diff --git a/README.md b/README.md
index 2c27d60..763e283 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,55 @@
 # Blog
 
-This is the source code that will soon power [kirsle.net](https://www.kirsle.net/).
+This is a web blog and personal homepage engine written in Go. It includes a
+full-featured web blog (with tags, archive views, etc.) and can serve static
+web assets, Go HTML templates and Markdown pages.
+
+## Zero Configuration
+
+Blog is designed to be extremely easy to run: just give it a path to your
+website's document root. It doesn't have to exist: it can be created as needed!
+
+```
+blog $HOME/www
+```
+
+See `blog -h` for command line arguments, for example to make it listen on a
+different port number.
+
+## Dual Template System
+
+Whenever a web request is handled by the Blog program, it checks your
+user-defined Document Root to serve the file before falling back on its
+built-in store of "Core Files."
+
+This way, you can copy and override files from the Core Root by creating files
+with the same names in your Document Root. If you override `.layout.gohtml`,
+you can customize the overall web design of your site. You can also
+override individual templates to customize the look of built-in pages, such as
+how blog entries are formatted.
+
+The Blog has a built-in page editor that makes it easy to copy and override
+the core template files.
+
+## Render Go HTML and Markdown Files
+
+You can write pages in the Go [html/template](https://golang.org/pkg/html/template/)
+format (`.gohtml`) or in GitHub Flavored Markdown (`.md`). Markdown pages will
+be rendered to HTML and inserted into your web design layout like normal pages.
+
+## Built-in Page Editor
+
+A built-in editor lists all of the pages in your Document Root and the Core
+Root. You can click on a page to edit it, with the
+[ACE Code Editor](https://ace.c9.io/) offering a rich code editing experience,
+with syntax highlighting for HTML, Markdown, JavaScript and CSS.
+
+Editing a Core Page and saving it will save an override version in your
+Document Root.
+
+In the default Blog theme, every page includes a link to edit the page
+in the Page Editor for logged-in users. The 404 Error handler also
+provides shortcuts to create a new page at that path.
 
 # Setup
 
@@ -14,8 +63,29 @@ cd ~/go/src/github.com/kirsle/blog
 
 # Run the server
 make run
+
+# Or to run it manually with go-reload to provide custom options:
+./go-reload cmd/blog/main.go [options] [/path/to/document/root]
 ```
 
+## Recommendation: Redis
+
+It is recommended to use the [Redis](https://redis.io) caching server in
+conjunction with Blog. Redis helps boost the performance in two main areas:
+
+The JSON database system will cache the JSON documents in Redis, speeding up
+access time because the filesystem doesn't need to be read each time. If you
+manually modify a JSON file on disk, it _will_ notice and re-read it next time
+it's requested.
+
+If you make use of source code blocks in GitHub Flavored Markdown, the Python
+`pygmentize` command can render syntax-highlighted HTML from it. Calling this
+program takes ~0.6s, and a page with many source blocks would take a _long_ time
+to load. I alleviate this by MD5-hashing and Redis-caching the rendered HTML
+code to minimize calls to `pygmentize`.
+
+After you initialize the site, go to the admin settings to enable Redis.
+
 ## Syntax Highlighting with Pygments
 
 To enable syntax highlighting within Markdown files (like with GitHub Flavored
@@ -29,6 +99,9 @@ sudo dnf install python3-pygments python3-pygments-markdown-lexer
 sudo apt install python3-pygments
 ```
 
+Blog will automatically use the `pygmentize` command if it's available on its
+`$PATH`.
+
 # License
 
 MIT.