This book is available on Amazon.com: http://www.amazon.com/Hiring-Best-Brightest-Roadmap-Recruiting/dp/0814406351Scribd link removed.
It's a little dated (~2002) but the end is pretty interesting. It lays out each schools recruiting schedule and interesting facts about schools.
Callbacks/Second Rounds: Do them as soon as possible, and do dings (rejections) at the same time as callbacks. Information travels at the speed of light at Tuck.
GMAT Club Premium Membership - big benefits and savings