StumbleUpon, the social bookmarking service that allows users to "stumble" from site to site, has released a major update for their mobie app. According to the update, version 3.3 includes a new Home page and features Lists, Slide and an integrated Refresh.

New Home Page - Enjoy a newly updated home page with quick access to Lists, what's trending, and social activity in StumbleUpon.

Lists - Explore, stumble through, and get addicted to following Lists that others have created.

Slide - Pull down to reveal cool facts about each page and why you're seeing it.

Refresh - Quickly refresh any stumble by pulling down the page.

Delicious, the social bookmarking website, has launched a completely new version of their site and service. They announced that they were working on a new version in December, and even released access to a demo version of the site so that users could preview the changes and provide feedback. The new version is clean and contemporary, and offers easy access to the site services that are most important: finding interesting links, finding interesting people, and reviewing the links you've previously bookmarked.

Digg (http://www.digg.com) has launched a completely new website, app and mobile version. The new Digg is being referred to as v1.

The company's blog post gave a sneak peak and took us through the motivation for completely rebuilding Digg and what will be coming. Digg states that the new Digg will be a beautiful, image-friendly, and ad-free experience."