If you want to know the difference between the feminist blogosphere and radical womyn of color, read this beautiful article by Lex. Not many can say it better than Alexis Pauline Gumbs:
The energy transmitted through the radical women of color blogosphere (a.k.a. those of us who are seeking to build community and create transformation across space and time, bringing ancestors and babies every step of the way) is a life-giving force. This magic, this potential is also why we are punished for loving each other. This is not the glorification of a scene, this is a distinction between scene and community, a reminder of what is at stake.