Today's Equinox Event at San Francisco's 111 Minna will be the most recent SF Beta event and program from Virgance, the for-profit activism campaign management company whose primary tool for encouraging change is online networking. They're the brains behind 1 Block Off the Grid, a community effort to make solar power available in bulk to neighborhoods, and consumer network Carrotmob, which invites people to reward companies that make socially responsible purchasing decisions. Promoted as "the biggest beta ever," today's Equinox Event is co-sponsored by cloud hosting company GoGrid and GOOD Magazine, and promises cocktails with entrepreneurs and activists to celebrate Virgance's upcoming first anniversary.