stumbleupon

__**What is it?**__ StumbleUpon.com is a social bookmarking site that gives you websites and webpages based on your interests and your friends interests. You fill out your interests once you sign up and you can always add more or delete your interests as you go. It helps you filter through all the info available on the web to deliver you content that's most useful for you.

__**How to use it?**__ Once you sign up (you can sign up through your Facebook account if you want), you can start rating pages (thumbs up or thumbs down). The sites you recommend are automatically shared with people who are similar to you. You can search or "stumble" and find pages that other people recommend to help you find content you probably wouldn't find using traditional search engines.

The page always refreshes, if you click the "humor" category you will get one page and if you click it again, you get another "humor" page.

You can upload links, pictures, quotes, videos, recipes to your Facebook, Twitter, or other social networking site.

You can spend hours getting lost in this social bookmarking site designed just for you.