StumbleUpon, a social browsing application that helps you discover and share great websites. As you click Stumble!, high-quality pages matched to your personal preferences are delivered to you. These pages can be recommended by your friends or one of 1,640,524 other websurfers with interests similar to you. Rating the sites that you like automatically shares them with like-minded people – and helps you discover great sites your friends recommend.
“We’ve seen a lot of growth in stumbling videos and now we’re able to bring you highly relevant, high quality content, based on your preferences,” said David Feller, vice president of marketing at StumbleUpon. “It’s very difficult to find something that is relevant to you just on searching ‘humor videos,’ or ‘cat videos.’ With StumbleVideo, you never leave the page. The content is brought directly to you. It’s a lot like channel searching but everything is customized based on your interests and preferences.”
To begin with, StumbleVideo will serve videos from the top three video sites: YouTube, Google Video, and Myspace. Feller said that any site with embeddable video can and will be served in the future but they chose these three in the interest of a timely launch. You can find more info here.