fangr.am - Building communities for creators
Patreon - Patreon enables fans to give ongoing support to their favorite creators.
Mighty Networks - Mighty Networks enables entrepreneurs, organizations, and companies to create and grow a community-powered brand.
Meetabit - All the local tech and startup meetups in one place - easy to organize & attend
Ensemble.Chat - Turn your Fans into Recurring Customers
Kommunity - Explore communities that share your passion with millions of people