diff --git a/README.md b/README.md
index 3d72b12..e374770 100644
--- a/README.md
+++ b/README.md
@@ -84,11 +84,16 @@
    repository type, and click "Create Repository" to begin adding your first
    repository.
 
-8. Once configured, click the "Return to Repository" link and click either
-   the "Import Everything" or "Import Newest Data" button to perform initial
+8. Configuring the repository is plugin-specific, so see the specific 
+    configuration documentation:
+    
+    * [docs/CONFIGURING.SourceGithub.md](docs/CONFIGURING.SourceGithub.md)
+
+9. Once configured, click the "Return to Repository" link and click either
+   the "Import Everything" or "Import Newest Data" button to perform initial 
    import of repository changesets and verify configuration.
 
-9. Once satisfied that your repository is configured & working correctly,
+10. Once satisfied that your repository is configured & working correctly,
    you can automate the import of new changesets by configuring a cron
    job on the web server where your Mantis installation resides, as follows:
 
@@ -104,7 +109,7 @@
 
    This will import new changesets for all configured repositories.
 
-10. Add additional repositories as needed.
+11. Add additional repositories as needed.
 
 ## Support
 
diff --git a/docs/CONFIGURING.SourceGithub.md b/docs/CONFIGURING.SourceGithub.md
new file mode 100644
index 0000000..63c1416
--- /dev/null
+++ b/docs/CONFIGURING.SourceGithub.md
@@ -0,0 +1,89 @@
+
+# SourceGithub Configuration
+
+## Description
+
+The **SourceGithub** plugin adds support for Git repositories hosted on 
+[GitHub](http://github.com/), both public & private (presonal & organization) 
+repositories.
+
+**NOTE:** As of this writing the **SourceGithub** plugin requires either Mantis
+1.2.16 (not yet released) or Mantis 1.2.15 with the 
+[mantisbt/mantisbt@8df9d5f](http://github.com/mantisbt/mantisbt/commit/8df9d5fa221bb85f9f8c1ca6b698d75b740d6449)
+patch applied. This is due to a new requirement in GitHub API v3 ([User Agent 
+header is mandatory for all API
+requests](http://developer.github.com/changes/2013-04-24-user-agent-required/))
+enforced as of 2013-04-24.
+
+##
+
+1. Ensure both the **Source** and **SourceGithub** plugins are installed. See 
+the [README](../README.md#installation) for overall instructions.
+
+2. Click the "Repositories" link in the navigation bar.
+
+3. In the "Create Repository" section:
+    
+    a. Enter the repository name in the "Name" text field.
+    
+    b. Select "GitHub" from the "Type" pop-up menu.
+    
+    c. Click the "Create Repository" button.
+
+4. This will take you to the "Update Repository" page where you'll need to fill
+    in all the details for the repository:
+    
+    a. The "Name" field should be pre-populated with the name you entered in
+        Step 3a.
+    
+    b. Paste in the GitHub repositories URL in the "URL" field (e.g. 
+        `https://github.com/mantisbt-plugins/source-integration`).
+    
+    c. Enter the GitHub username of the repository's owner in the "GitHub Username"
+        field (e.g. "mantisbt-plugins").
+    
+    d. Enter the GitHub repository's name in the "GitHub Repository Name" field 
+        (e.g. "source-integration").
+    
+    e. If it's a public GitHub repository, you can skip the "GitHub Application
+        Client ID" & "GitHub Application Secret" fields. If it's a private 
+        repository, you'll need to configure a GitHub Developer Application:
+        
+        I. Visit https://github.com/settings/developers and click the "Register
+            new application" button.
+        
+        II. Enter "MantisBT Source Integration" in the "Application name" field.
+        
+        III. Enter the URL for your Mantis installation in the "Homepage URL" 
+            field.
+        
+        IV. Enter the URL for your Mantis Source/oauth page (the URL with
+            "/plugin.php?page=Source/oauth" appended to it; e.g. "http://mantisbt.org/bugs/plugin.php?page=Source/oauth").
+        
+        V. Click the "Register application" button.
+        
+        VI. Switch back to your Mantis GitHub Repository configuration.
+        
+        VII. Enter your GitHub Developer Application's Client ID in the "GitHub 
+            Application Client ID" field.
+        
+        VIII. Enter your GitHub Developer Application's Secret in the "GitHub 
+            Application Access Secret" field.
+    
+    f. You can specify a branch or branches other than just "master" in the 
+        "Primary Branches" field, if you like.
+    
+    g. Click the "Update Repository" button.
+    
+5. If this is a private GitHub repository, you'll need to authorize Mantis
+    to access your repository, so do the following:
+    
+    a. Click the "Update Repository" button.
+    
+    b. Click the "Click to Authorize" button in the "GitHub Application 
+        Access Token" field. If successful, it will say "MantisBT is now
+        authorized to access this GitHub repository."
+    
+6. Click the "Import Everything" button to test connectivity and perform an 
+    initial import of the repository changesets. **Note:** This may take a
+    long time or fail for large repositories.