Most of my work time currently is spent programming in Objective-C on iOS and Mac. I have built many different applications on these platforms from stopwatches, to networked space simulators, to CMS driven document libraries, to 3D games. In many of my other projects I like to use C++ and C and feel . I also have quite a bit of experience with 3D graphics and I use a lot of OpenGL across all my work. When I don't work on performance critical software and work on standard desktop applications I prefer to use a language like Objective-C, C#, or Java.

Some sites you should check out:

General:

http://fabiensanglard.net/

http://iphonedevelopment.blogspot.com/

http://cowboyprogramming.com/

http://www.flipcode.com/

OpenGL:

http://www.swiftless.com/

http://videotutorialsrock.com/

http://www.lighthouse3d.com/