WWE - Lots of information on the actual site maintained by World Wrestling Entertainment

AJPW - All Japan Pro Wrestling (it's in Japanese, which isn't too surprising)

AWA - American Wrestling Assocation Stars of Wrestling, a re-birth of sorts of the original AWA

BCW - Border City Wrestling, out of Ontario, Canada

CMLL - Consejo Mundial de Lucha Libre, arguably the strongest organization in Mexico

CZW - Combat Zone Wrestling, Get Ultraviolent!

DSW - Deep South Wrestling, a WWE developmental federation

FIP - Full Impact Pro, a group that has a strong union with RoH

FWA - Frontier Wrestling Alliance, in the UK

HWA - Heartland Wrestling Association, formerly a major WWE developmental federation

IWA - International Wrestling Alliance, the powerhouse of Puerto Rico (Spanish page)

IWA Mid-South - Independent Wrestling Association Mid-South, known for their Ted Petty Invitational and King of the Death Match tournaments

JAPW - Jersey All-Pro Wrestling, an independent promotion

NJPW - New Japan Pro Wrestling, once again (shockingly) in Japanese

OVW - Ohio Valley Wrestling, the major developmental federation for the WWE

RoH - Ring of Honor, possibly the best independent organization around

WWC - World Wrestling Coalition, based out of Cherry Fork, Ohio

WXW - World Xtreme Wrestling, in Pennsylvania, run by Afa the Wild Samoan