The Dapper Rat - an Australian based site, which gave rise to "Grotto" style cabinet cages.
Ratsicles Rattery - a rattery (breeder) in Columbus Georgia.
The Kiwi Rat Resource - a resource for New Zealand rat lovers.
The South African Rat Fan Club - also RASCALS Rattie Rescue.
Rat Assistance & Teaching Society (R.A.T.S) - A comprehensive site for rat owners.
The Great Pointed Archer - A fun rat site with lots to look at.
SocRATies - Ground force rat owner information & education program in honour of philosorats and educated rat owners.