Could a few million facebook users gather in one group and put pressure on facebook to incorporate bitcoin?
I do not see any reason to as why not, a petition could be good too towards current social networks to incorporate it
I have joined with some bitcoin group, but mostly they just do a spam with their reff link. this is not effective. as far as i see zapchain is other nice place to discuss about bitcoin or cryptocurrency, besides this forum. and also they have earning system.