EDIT: (MAY 2012)
My art links have been redacted for professional reasons, but you can take a look at many of my favourite artists and their work here:

my art blog roll

(warning, many of these are majorly NSFW)

Blek le Rat
Brad Walsh
Bruce LaBruce
Dominic Johnson
Jake Dow-Smith
JD Ferguson
Luigi y Luca
Marcelo Krasilcic
Maurizio Fiorino
Nicolas Urquiza
Nicolas Wagner
Paco y Manolo
Ryan McGinley
Slava Mogutin