I find FB very jolly (if you avoid the political rows, which I don't always, I'm afraid!) and I'm in several interest groups on there. I love keeping up with friends and family, some of the friends being very good but entirely 'virtual' ones who I've come to be very fond of. Don't dismiss it entirely, people.
Also - there's Scrabble. I've got 7 games on the go at any one time and I'd miss it like mad!
Having said all that, I too ignore the charity birthday things. Its comparatively recent, I think. I haven't signed up to any charity myself. I don't want anyone pushed into making a donation simply because it's MY birthday.
Things you find stressful that other people don't notice.