StumbleUpon discovers web sites based on your interests, learns what you like and brings you more.
Using a combination of human opinions and machine learning to immediately deliver relevant content, StumbleUpon presents only web sites that have been suggested by other like-minded Stumblers. Each time the Stumble button is clicked, the user is presented with a high quality web site based on the collective opinions of other like-minded web surfers.
Firefox extension on https://addons.mozilla.org/en-US/firefox/addon/138/
Google Chrome extension on https://chrome.google.com/webstore/detail/kcahibnffhnnjcedflmchmokndkjnhpg
