And maybe Twitter sharing as well
Is it easy? I had a look at one or two options, but it's a minefield. With one option for vBulletin there's a guy here who complains it's adding 200k of js to his page. I don't want to add that much.
Other threads in the vB forum talk about signing up for yet more third party services such as AddThis and ShareThis. Do I really need those?
In fact, do I even need an FB account first?