I'm trying to compile a list of grassroots "learn to program" organizations that are explicitly trying to broaden participation in computing beyond the current white-and-Asian male demographic. So far, I know of the ones listed below; if you know of others, I'd welcome pointers. (Note: while I think that the Anita Borg Institute and others are doing great work, I'm mostly interested in groups trying to build new on ramps, rather than groups supporting women who are already in tech.)