Wikia have been rolling out a process to allow people to connect their Wikia accounts to their Facebook accounts.
I'm not sure exactly what functionality this will allow, apart from allowing Facebook users to say: "I like that" about Spelljammer Wiki articles they visit. ;-)
One thing it apparently will do is (with my permission) post a feed to my Facebook page everytime I add content to Spelljammer Wiki. So, from now on, you should be able to see how busy or lazy I am. ;-)
David Shepheard
Spelljammer Wiki