http://www.gamersbook.com/Basically, like the name says compared to facebook, it's an online community for gamers... I didn't know about it before, just randomly stumbled to this... So I thought it wouldn't be bad for them to be heard of
Site itself is pretty good imho, you have latest gaming news on your main page, so when you pick the games you're playing/you've played, you'll get news for those areas... There's chat, uploading videos, pictures, blogs, gaming streams withing the page etc... If you want, check it out, if not, your choice