The Italian Greyhound Club of America - general & health information, breeder referrals, etc.
American Kennel Club - breed info, registry, events, etc.
Info Dog - search for dog events, statistics, register for shows, etc.
Iggy Planet - IG forum, with great advice, news, events, photos, rescue info, etc.
4 The Love Of Sighthounds - website and message board devoted to sighthounds
IGCA Rescue - rescue reps by state, application forms, guidelines, donations, etc.
Books/Magazines: