... Hive Index ? :) Comment from Nicolas Greni (@picsoung): You are already hitting the other important communities I would also add the SF Commons which is both a co-working space and a community, this is in the heart of Cerebral Valley (aka. Hayes Valley). Don't miss out on @heavybit for anything Developer-related; if you are building for developers, hang out there and attend their events; so much good knowledge and best practices are being shared. SF is then full ...