It’s hard to believe that Stumble Upon one of the first real social bookmarking sites is still so popular. But statistics show that with a half-life almost 400X that of Facebook and Twitter, Stumble Upon is here to stay!

Most people thought that Facebook links would have longevity; they don’t – they have a few hours of virility but little in terms of longevity. Whereas Stumble links actually have a longevity of not just hours but days and weeks (months in some cases). From this study it looks like maybe we should all be using Stumble Upon a little more!

Viral Video of Stumble Upon Killing Facebook