Social Bookmarking

StumbleUpon updated its social bookmarking service last week and one of the key improvements was search. Users can now search within their favorites, friend's favorites or the entire site. The search was enhanced using community ratings and reviews. Additional updates include UI and social features. The UI is simpler and more minimalistic. It's cleaner and just looks easier to use. On the social side of things, StumbleUpon says it's now...  

Like Madonna, socialbookmarking services like Digg and Reddit have been reinventing themselves to stay relevant within social media circles. With over 8.5 million users and 35 million Web pages "stumbled," StumbleUpon has gone one step further than its competitors.  

Starting today, social bookmarking service StumbleUpon is allowing users to beta test a shiny, happy redesign of their site. The new interface is streamlined and more social with an updated relationship system. A focus on consistency (e.g., limiting user control of visual elements) and removal of clutter (e.g., presenting tags in a drop-down menu rather than a cloud) characterize the design changes made. Also, a few tweaks to group sharing...  

Social bookmarking has been one of the main virtues of big social networking sites like Digg and Stumble Upon. Simply why people bookmark? There are various