There just have been elections for a student body at my university. And a few times in the last days, I suddenly found myself belonging to Facebook groups supporting this or that person, people I did not know and had no idea what their agendas were. The first time I received an email informing me about that, later these notifications somehow didn’t reach me anymore, which is even more disturbing. I am not sure whether this has worked in favour of those candidates.
It is bad enough that Facebook has introduced these groups as opt-out, but that does not mean you should use this feature lightly. The 1000yr Old Man has a very nice post, explaining and demystifying the new Facebook groups. Please read this carefully before adding your friends to a group that they might potentially not want to join. Especially if it is about politics. And especially if it is me you want to add.