This is why I'm keen on some kind of web of trust for this sort of stuff.
My problem aren't pages like facebook or google, which I use everyday (even if facebook is kinda overloaded) but more the pages I don't know :\
I've been filtered in the past because of LGBT related content on my site. A friend told me their school filtered it for the stated reason of "advocacy of immoral lifestyles". Which is hilarious.