This site is a mix of many things from entertaining to spam to anything.
Child Safety can be a mix of whether your child knows how to operate the privacy setting well. This also links to privacy.
Trustworthiness is a moderate. It would depend on the site. I would say that it is okay at times since they allow applications, but they can be spam or phishing attempts as well. People don't realize it, but they can go to the application before checking out the real thing. The application has a setting which shows the rating of it from other people, as well as comments.
You have no privacy or vry limited privacy depending how you have your settings "set."
re:
https://www.facebook.com/directory
re:
http://www.skullsecurity.org/blog/?p=887
also re:
http://www.symantec.com/connect/blogs/attack-facebook-snatchers
It is a very great site to keep in touch with friends. Do not accept friend request's from people that you don't know. Also, don't click on suspicious link's posted by "friends," as they may have been tricked, hacked, or wanted to see a "shocking photo" and tricked into copying the link and posting it on their profile. One more thing, some of the "Fan Pages" take you to website's that WOT rates red.
Biggest social networking site on the web,But many browser exploits,viruses,spam emails,adware,spyware,and other things can be acquired from this website JUST FROM CLICKING TO PLAY A GAME.My grandmother got loads of viruses just from playing Happy Aquarium.95% of the ads contain spyware and viruses.And there are some major privacy issues with some apps.Only use this website to communicate with friends or family.DO NOT go on any apps.