Today I reactivated my Facebook account just to be able to delete it completely. If you find Facebook useful, you should at least be aware of its potential privacy issues, and tune your privacy settings to a level that you find comfortable. Here are some links where you can find more information:
via mattmckeon.com This is a very good analysis, and is why my Facebook account is currently deactivated, and probably will be deleted. Contrary to Matt, I don't find Facebook very useful. Mostly it's served me to be found by people by whom I wasn't all that interested in being found, to see relatives' photos (which I can also receive through other means), to be endlessly spammed by people playing Farmville and, most usefully, to contact people whose email addresses I don't have or can't bother to remember. None of these are indispensable or irreplaceable to me.