--- a/lib/rolling-curl/example_groups.php
+++ b/lib/rolling-curl/example_groups.php
@@ -1,1 +1,49 @@
+<?php
+require 'RollingCurl.php';
+require 'RollingCurlGroup.php';
 
+class TestCurlRequest extends RollingCurlGroupRequest {
+    public $test_verbose = true;
+
+    function process($output, $info) {
+        echo "Processing " . $this->url . "\n";
+        if ($this->test_verbose)
+            print_r($info);
+
+        parent::process($output, $info);
+    }
+}
+
+class TestCurlGroup extends RollingCurlGroup {
+    function process($output, $info, $request) {
+        echo "Group CB: Progress " . $this->name . " (" . ($this->finished_requests + 1) . "/" . $this->num_requests . ")\n";
+        parent::process($output, $info, $request);
+    }
+
+    function finished() {
+        echo "Group CB: Finished" . $this->name . "\n";
+        parent::finished();
+    }
+}
+
+$group = new TestCurlGroup("High");
+$group->add(new TestCurlRequest("www.google.de"));
+$group->add(new TestCurlRequest("www.yahoo.de"));
+$group->add(new TestCurlRequest("www.newyorktimes.com"));
+$reqs[] = $group;
+
+$group = new TestCurlGroup("Normal");
+$group->add(new TestCurlRequest("twitter.com"));
+$group->add(new TestCurlRequest("www.bing.com"));
+$group->add(new TestCurlRequest("m.facebook.com"));
+$reqs[] = $group;
+
+$reqs[] = new TestCurlRequest("www.kernel.org");
+
+// No callback here, as its done in Request class
+$rc = new GroupRollingCurl();
+
+foreach ($reqs as $req)
+    $rc->add($req);
+
+$rc->execute();