I'm breaking from my usual policy of 'stupid stuff only' on Soldier Ant to point to Implementing a Pattern Library in the Real World: A Yahoo! Case Study. It was recently presented at the 2005 IA Summit by Matt Leacock, Erin Malone and Chanel Wheeler. (Matt and Erin are old friends and colleagues of mine.) This is a great paper and --I'm sure-- was a great presentation as well. Check it out!