My mom has been on fb for a few years now. No big deal, she was pretty laid back so I didn't have to take any of my college inappropriateness off of there because I didn't care if she saw.
But she has taken fb in a completely different direction - she's obsessed with it. Always making comments on anything new, reading every single update, telling me about what everyone else has done, gossiping about people on fb and posting all kinds of links about "beware: you are being mapped on facebook!" "This is how to block facebook from sharing your phone number!" It's just all very annoying.
Has even told my sister and I multiple times that she doesn't like her phone because the fb app is better on her iTouch.... really? really??
Start making friends outside of the realms of facebook and get something with some substance to talk about.
Sorry...just needed to vent.