I'm usually someone who is rather careful with privacy online, I'm someone who rather concerned by that. I guess having two parents constantly warning me against the danger of Internet per anonymity/privacy doesn't really help much.

So I really don't share much online with people I don't know. I sometimes share my real name as well as the country I live in, sometimes I might share the province I live in too (but more rarely) but I generally don't go any farther than this. I almost never state the school I go to and the city I live in. I never never share my home address or phone number. I also don't share my picture except with people I've gotten to know very well or that I've got a feeling are okay -- I usually go with my guts on that-- even though I know everyone can pretend to be anyone they want on the Internet.