It seems that every session we have there are people asking to find out where to get free rigs from. So I started thinking yesterday why not make a thread with links to all the rigs we can find much like the sticky above with the tutorials. Here are the ones I can think of right now.
http://www.miquelcampos.com/ flyman for xsi
http://www.mrsolo.com/mrs_edgard.html edgard for xsi
http://lichiman.aniguild.com/index.php?mod=lowman lowman for maya
http://andrewsilke.com/generi_rig/generi_rig.html generi for maya
http://www.gregtowner.com/Bob.htm bob for maya
http://www.rigging101.com/ packageman for maya