I've had artisanal birch beer at a Ren Faire. The concession stand were specialists and had birch beer, sassafras, sarsparilla, and blends and offered a tasting flight. I believe the birch beer was my favorite, but now I'm not sure - it was October before last and while I remember the experience pretty well, remembering which flavor was which ingredient is beyond me.
Alex Petri will help you with the Facecbook issue
Whew!
I have decided to be unconcerned about Facebook. I'm full of fatalistic despair about privacy anyway, and fed up with being told it's my responsibility as a consumer to direct the invisible hand of the market instead of regulatory mechanisms just making rules. And I'm not even the consumer in this case, I'm a cow on the feedlot. I could go and forage for myself but I like my herd. As it were.