diff --git a/README.txt b/README.txt
index a1d8c2b..f574095 100644
--- a/README.txt
+++ b/README.txt
@@ -1,7 +1,7 @@
 
-------------------------------------
-HTTP PARALLEL REQUEST LIBRARY MODULE
-------------------------------------
+------------------------------------------------
+HTTP PARALLEL REQUEST & THREADING LIBRARY MODULE
+------------------------------------------------
 
 
 CONTENTS OF THIS FILE
@@ -12,6 +12,7 @@ CONTENTS OF THIS FILE
  * Configuration
  * API Overview
  * Technical Details
+ * Code Examples
 
 
 ABOUT HTTPRL
@@ -64,6 +65,10 @@ httprl_request()
 httprl_send_request()
  - Perform many HTTP requests.
 
+Create and use a thread:
+httprl_queue_background_callback()
+ - Queue a special HTTP request (used for threading) in httprl_send_request().
+
 Other Functions:
 httprl_background_processing()
  - Output text, close connection, continue processing in the background.
@@ -73,6 +78,10 @@ httprl_glue_url()
  - Alt to http_build_url().
 httprl_get_server_schema()
  - Return the server schema (http or https).
+httprl_pr()
+ - Pretty print data.
+httprl_fast403()
+ - Issue a 403 and exit.
 
 TECHNICAL DETAILS
 -----------------
@@ -83,3 +92,176 @@ the http response; Non-Blocking will close the connection not waiting for the
 response back. The API for httprl is similar to the Drupal 7 version of
 drupal_http_request().
 
+
+CODE EXAMPLES
+-------------
+
+Request this servers own front page & the node page.
+
+    <?php
+    // Build URL to point to front page of this server.
+    $url_front = httprl_build_url_self();
+    $url_node = httprl_build_url_self('node');
+    // Queue up the requests.
+    httprl_request($url_front);
+    httprl_request($url_node);
+    // Execute requests.
+    $request = httprl_send_request();
+
+    // Echo out the results.
+    echo httprl_pr($request);
+    ?>
+
+
+Request 10 URLs in a non blocking manner on this server. Checkout watchdog as
+this should generate 10 404s and the $request object won't contain much info.
+
+    <?php
+    // Set the blocking mode.
+    $options = array(
+      'blocking' => FALSE,
+    );
+    // Queue up the requests.
+    $max = 10;
+    for ($i=1; $i <= $max; $i++) {
+      // Build URL to a page that doesn't exist.
+      $url = httprl_build_url_self('asdf-asdf-asdf-' . $i);
+      httprl_request($url, $options);
+    }
+    // Execute requests.
+    $request = httprl_send_request();
+
+    // Echo out the results.
+    echo httprl_pr($request);
+    ?>
+
+
+print 'My Text'; cut the connection by sending the data over the wire and do
+processing in the background.
+
+    <?php
+    httprl_background_processing('My Text');
+    // Everything after this point does not affect page load time.
+    ?>
+
+
+Use a callback in the event loop to do processing on the request. In this case
+we are going to use httprl_pr() as the callback function.
+
+    <?php
+    // Setup return variable.
+    $x = '';
+    // Setup options array.
+    $options = array(
+      'method' => 'HEAD',
+      'callback' => array(
+        array(
+          'function' => 'httprl_pr',
+          'return' => &$x,
+        ),
+      ),
+    );
+    // Build URL to point to front page of this server.
+    $url_front = httprl_build_url_self();
+    // Queue up the request.
+    httprl_request($url_front, $options);
+    // Execute request.
+    $request = httprl_send_request();
+
+    // Echo returned value from function callback.
+    echo $x;
+    ?>
+
+
+Use a background callback in the event loop to do processing on the request.
+In this case we are going to use httprl_pr() as the callback function. A
+background callback creates a new thread to run this function in.
+
+    <?php
+    // Setup return variable.
+    $x = '';
+    // Setup options array.
+    $options = array(
+      'method' => 'HEAD',
+      'background_callback' => array(
+        array(
+          'function' => 'httprl_pr',
+          'return' => &$x,
+        ),
+      ),
+    );
+    // Build URL to point to front page of this server.
+    $url_front = httprl_build_url_self();
+    // Queue up the request.
+    httprl_request($url_front, $options);
+    // Execute request.
+    $request = httprl_send_request();
+
+    // Echo returned value from function callback.
+    echo $x;
+    ?>
+
+
+Use a background callback in the event loop to do processing on the request.
+In this case we are going to use print_r() as the callback function. A
+background callback creates a new thread to run this function in. The first
+argument passed in is the request object, the FALSE tells print_r to echo out
+instead of returning a value.
+
+    <?php
+    // Setup return & print variable.
+    $x = '';
+    $y = '';
+    // Setup options array.
+    $options = array(
+      'method' => 'HEAD',
+      'background_callback' => array(
+        array(
+          'function' => 'print_r',
+          'return' => &$x,
+          'printed' => &$y,
+        ),
+        FALSE,
+      ),
+    );
+    // Build URL to point to front page of this server.
+    $url_front = httprl_build_url_self();
+    // Queue up the request.
+    httprl_request($url_front, $options);
+    // Execute request.
+    $request = httprl_send_request();
+
+    // Echo what was returned and printed from function callback.
+    echo $x . "<br />\n";
+    echo $y;
+    ?>
+
+
+Use 2 threads to load up 4 different nodes.
+
+    <?php
+    // List of nodes to load; 241-244.
+    $nodes = array(241 => '', 242 => '', 243 => '', 244 => '');
+    foreach ($nodes as $nid => &$node) {
+      // Setup callback options array.
+      $callback_options = array(
+        array(
+          'function' => 'node_load',
+          'return' => &$node,
+          // Setup options array.
+          'options' => array(
+            'domain_connections' => 2, // Only use 2 threads for this request.
+          ),
+        ),
+        $nid,
+      );
+      // Queue up the request.
+      httprl_queue_background_callback($callback_options);
+    }
+    // Execute request.
+    httprl_send_request();
+
+    // Echo what was returned.
+    echo httprl_pr($nodes);
+    ?>
+