I’m planning to start running a Diaspora pod on one of my VPSs, with an aim to provide a communal space for some of our longtime friends getting more frustrated with FB but dreading the cost of leaving (such as rushing to some other platform to find no-one is there.) Diaspora is similar to Facebook and/or Twitter, is open source and set up in a fully distributed way.
Friend and fellow tinkerer Peter Rukavina and I plan to work together on this.
(btw I already have a Diaspora profile on Joindiaspora.com, so if you already use Diaspora you can find me there. Ultimately I will replace that profile and host my own.)