This week StumbleUpon has made extraordinary changes to its app for the iPhone and iPad, enabling users the ability to discover and stumble easier than ever before. Their main objective is to make the app more personable for users to have a more personalized experience. …

Most of us already know that StumbleUpon is a discovery engine that recommends and personalizes web content based on users’ personal interests, social networking principles, and peers. As a result, virtual communities and networks are created of Web surfers connected by common interests. …

It looks like Pinterest. It acts like Digg. The newest player in the social media sphere adds some features from Stumbleupon and Twitter to the mix to form Thruzt, now entering into public beta. Unlike many of its predecessors, Thruzt encourages networks to be formed within the community to draw attention to submissions. Users select content on the web that they find valuable or write up their own stories on their blogs and submit it to Thruzt. Then, the “game” is on to get it enough votes to get popular. The first thing people will notice when visiting is that the layout is very similar to Pinterest….