The Wisdom of Communities — Luke Wroblewski’s notes from Derek Powazek‘s talk at Event Apart. Wisdom of Crowds theory shows that, in aggregate, crowds are smarter than any single individual in the crowd. See this online in most emailed features, bit torrent, etc. Wise crowds are built on a few key characteristics: diversity (of opinion), independence (of other ideas), decentralization, and aggregation.
How to Fit an Elephant (John D. Cook) — for the stats geeks out there. Someone took von Neumann’s famous line “with four parameters I can fit an elephant, and with five I can make him wiggle his trunk”, and found the four complex parameters that do, indeed, fit an elephant.