Im writing my first RCP application at the moment and with any new programming challenge im having to do a lot of searching through help files and on the net. As you all know, sometimes an example is worth a 1000 articles, so finding the Koders site has been a real blessing. They even have an eclipse plugin so you dont have to leave home to find out how others are using IWorkbenchWindowActionDelegate. 🙂
Definitely worth adding to your toolkit.
Try another source code search engine, Codase, http://www.codase.com