Blitz Basic A specialized version of BASIC designed specifically for game development. Includes features like custom types and functions. Code is compiled before execution to speed things up.
http://www.blitzbasic.com/
flipCode Find articles, coding techniques, news, and interviews relating to Game programming. A fair number of specific tutorials as well.
http://www.flipcode.com/
GameDev.net Featuring a huge reference library and weekly interviews of professionals inside the industry. Participate in a public game development project.
http://www.gamedev.net/
GarageGames.com An online game development community and resource center, keeping independent and professional developers connected to their peers, the industry and cutting edge information, tools and code.
http://www.garagegames.com/
zstar An extensible, distributed system for game development, consisting of an abstract game client, and a game server to which players connect to play games against other players or alone.
http://zstar.sourceforge.net/