OpenGL tutorials:
NeHe OpenGL tutorials
Game Tutorials

Great sites:
Mame
Emu-france
System 16-arcade museum
Java 2 sun
dcmo5 (Thomson emu)
SmsPower
Linux Emu
The Linux Game Tome
Mozilla Firefox
Britain discovery (nice!)
mc6809
mo5.com
Metropolrock (fr)
ArcadeControls
Dsp Emu HQ(en/sp)

Various links:
Consolemul
Gbaemu
Playeradvance
Pdroms
Povray HQ
Oyonale