Tens of thousands of women and their supporters filled the streets of the Mission and the Castro this evening for the annual San Francisco Dyke March. Contingents ranged from older lesbians to dykes with tykes (mothers with children); from Dykes on Bikes (women on motorcycles) to Radical Women. Some of the more political signs and costumes were related to defending same-gender marriage, defeating George Bush in the 2004 election, and remembering murdered transgender teenager Gwen Araujo.