If you like facebook chances are you might like www.Hyves.net
Hyves is a social network worth looking at. Has PC, Mobile, and also has a downloadable app that allows you to post your existing blogs add a Hyves blog, post photos, videos, join groups of all kinds, add your existing websites as links to your profile, link your profile to your Twitter account. It even has a scan code for you Blackberry users to give you their link to download the mobile app. I find it great that my Tumblr blog is able to be added to or inc. into my Hyves blog.