Graphics in Linux

hey,

i'm starting to use linux more, and i was wondering, i've done all these graphics libraries for windows, but what graphics libraries are available for linux? could anyone give me a URL, or possibly a quick tutorial? thanks

BTW i didn't post this in the linux forum because the last post was three days ago.

Allegro, and SDL come to mind. www.libsdl.org, and I forget the Allegro URL, go to google.com and type Allegro, it is the first result.

you all know I would say use Allegro, me being such a supporter and all :p

and allegro's website is www.allegro.cc

OpenGL (Mesa)