European Roma Rights Center
ERRC is an international public interest law organisation which monitors the human rights situation of Roma and provides legal defence in cases of human rights abuse. Comprehensive site with information on grant opportunities and useful links. 

ERGO network
Five independent Roma organisations have joined together in the international network of European Roma Grassroots Organisations (ERGO). Together they work for equal opportunities for Roma in Central and Eastern Europe to participate in all spheres of life, while keeping their identity and being free to express it.