Here are some libraries that I've been either improving or porting to AROS.
pLib : port is only partial (no sound for example), I made it to have SuperTuxKart working on AROS.
irrLicht : also partial port, most of teh examples are working, however, STK 0.7.x isn't working yet with this library. I suspect that problems are linked to file I/O routines.
I haven't been able to progress on debugging this, so if anyone feels as he can contribute feel free to download the current WIP and complete it.
SDL: update from 1.2.11 to 1.2.14 of aros SDL port and improved speed and completeness
The library will be part of AROS SVN repository in short time I hope.
GLEW : The OpenGL Extension Wrangler Library