These are sites that might prove to be quite nice for people who are either starting out in the realm of three dimensional graphics APIs or just want browse the Internet for no particular reason at all...:).

GROUPS / DEVELOPERS:

        Peroxide - Check out their Era game...;)
        Xenonaut - This is the site where a lot of groups converge!

GAME DEVELOPMENT INFOs:

        GameDev.Net - Also brings you online daily gaming news
        GameTutorials.Com - Teaches with source codes...;)
        NeHe's OpenGL Site - One of the best known OpenGL tutorial site
        OpenGL.Org - Main OpenGL website. Has the latest news on OpenGL
        Programmer's Heaven - As its name suggests, it's "programmer's heaven"...
        UltimateGameProgramming - Has tutorials on how to use Cg with OpenGL!
        X-tutorials.De - A German development site (with tutorials on Direct3D!)
        ZeusCMD - Has many tutorials, including OpenGL ES!

PROGRAMMING LANGUAGES:

        CPP-Home.Com - A nice C++ tutorial website (for semi-advanced C++ programmers)
        CProgramming.Com - Another C++ tutorial website (very nice for beginners!)

FORUMS / MESSAGE BOARDS:

        Mr. GameMaker - Post questions here and you're sure to get an answer

PERSONAL WEBSITES:

        AndyPike - A VERY good DirectX8 (Direct3D mostly) tutorial website!
        Gabby Dizon - Blog site of a game designer. Part of the Anino team. :)
        Glassner - Site of a great researcher in computer graphics...;)
        Ken Perlin - Ever heard of Perlin Noise?...'nuf said...;)
        Keith Ditchburn - Site of a former game developer for "Emperor: Battle for Dune".
        Lev Povalahev - Has an (discontinued) OpenGL extension loading library and other projects!
        Mark J. Harris - A source on real-time cloud rendering