September 13, 2009 — HookPress allows you to set up webhooks so that a specified URL (a public service or something you set up) is requested when certain WordPress actions occur. Possible uses include generating push notifications or using non-PHP web technology to extend WordPress. This introduction by the plugin author, mitcho, gives you a brief overview of HookPress and a couple of examples for getting started.
May 12, 2009 — Twitter Friendly Links is a plugin for WordPress that provides you with your very own URL shortening service within your own domain name. Get Twitter Friendly Links at the WordPress plugin directory or at the official plugin page
Video by Konstantin Kovshenin