A Marketing Hodge-Podge Of Good Karma

With my continuing internet connection frustration, I have had to prioritise work-flow, thus my posting schedule has been reduced, and regrettably I am a lot less responsive to comments and email.

Stumbleupon Algorithm Unearthed?

How does the Stumbleupon algorithm really work.? I have no idea, and I doubt anyone else really does know for sure, other than core programmers at Stumbleupon.
I do know one thing though, Tim is probably the person who has spent the most time studying Stumbleupon, analytically.