StumbleUpon!
“StumbleUpon”:Stumbleupon.com is a website that lets you surf the net via some kinda social network. Stumble! directs you to websites based on your selected interests. You can see which websites other people likes and dislikes. Based on your selected interests, and which pages you have “thumbed up/down”, the system will get you better results that fits your interests.
Its as simple as signing up and install the stumbleupon toolbar for firefox, and you are ready to go 
Also, there is a big community where you can see which pages other stumblers like. I just got started yesterday after I had heard of the site several times during the last month, and I thought I had to check it out. I’m positively surprised. Some of the pages it’s shown me fits my interests very well 
My profile: liqurize