SFTech4Good is a group founded in 2006 that discusses the intersection of technology and social good. It has grown from 1,600 to over 3,800 members. The organizer provides tips for keeping groups engaged around a shared mission or cause, which include being consistently involved in and listening to the community, using personal networks to spread the word, experimenting with new ideas, sharing content for remote participation, and empowering online community members.