Spare five minutes?

I've been using Stumble on! these past few weeks. Its a fab little application that can sit in the Firefox toolbar . It finds sites it thinks you might be interested and randomly fires them into your browser. There is a neat little community feature where you  can access other peoples recommendations. Has separate video and image 'find' features. Seemly aimed at the  hyperactive like myself, got a spare five minutes? Hit Stumble and bang! something from the blind corner of the web pops up, strangely appropriate to your life. weird but rather fun. Perfect web tool.