I am female, but I also have a significant other, a large part-Pitt part Golden Lab dog, seven cats...and I have a facebook and myspace. I add people who randomly request friends. There are things that should never be done online, in my opinion, not if you are 250 pounds and feel invincible.
1. I don't post my true name, but after a long time, I will share that with a few trustworthy and real people (as in, they are connected in a way with some aspect of a secure site). I write about personal issues online, and while I try to be as careful as I can, I value my employment. I also, ironically, value my and other's privacy. So I keep myself anonymous to a certain extent...
2. Never, ever, ever, ever post your telephone numbers, cell, email, address, on any site, no matter how safe it looks or seems. There is never a reason to do this. I am, unfortunately, still uneasy...a long time ago, after I had met someone who had a job in my town online, and connected him to a real address and real place, I gave my information to him. I still regret that, more than I can possibly say. You never feel safe. I see people do this, and I get upset. There is never a good reason to do this.
3. You would be surprised about people you DO know. I found that some people who I kindof knew and saw on a regular basis (and these are adults!) were capable of bullying behavior online. As an adult, I never expected some people to act the way they did once they were posting updates, etc. It was truly amazing how nasty people are when they're typing. These days, the minute I think someone is like that, I don't look twice. I don't do I.M., and I do not deal with people who are prejudiced in any sense of the word. If they gossip or post nasty information, I block them immediately.
Anyway. The one thing that makes me a little uneasy on here is all of these people who just come on and watch, don't register...just read. What are they doing? Who are they?