Thanks to El Reg for pointing out the Koders.com site. It's a speciality search engine that focusses on source code. It seems to have a lot of the open-source projects indexed. So, put in some search terms, find examples of how others have dealt with same problems. Well, find examples of how others have dealt with the same keywords, anyway. That said, can't be a bad place to start if you have something to code but need that spark of inspiration to get you started.