There are numerous excelent resources for game development on the web and in print. Here are some good starting points for web sites. If you have a good resource for open source game development on other platforms, please email dulsi@identicalsoftware.com.
Gamasutra
Gamasutra is the online edition of Game Developers magazine. The site
contains a large collection of articles from game developers and is
highly recommended.
FreeGameDev Forums
Forum for dedicated to open source game development.