CIOs from companies including BestBuy, Cargill, Medtronic and Jostens figured out that they all end up writing similar code and interfaces to deal with making their IT systems work, so they formed  a corporate buyer's co-op--Avalanche Corporate Technology Cooperative. Inspired by the open-source movement, the co-op members trade and improve upon one another's programs. This is an idea that will take off like wildfire, if the companies can get over their fear of losing some competitive edge. But as Nick Carr of  "IT Doesn't Matter" fame points out, the IT advantage edge is rather thin....