Do you work for, or are otherwise associated with a school that is currently rushing around looking for a learning management system!? If so -- don't miss the open source Moodle!
I've never used it myself, but I've installed it for a few clients in the past. Once installed it needs very little technical management, just the occasional security update.
Users at lazer.pizza have typically chosen to join specifically to forge relationships with each other, and to grow a small community of people with personal connections.