The Jefferson County sheriff's office has released 946 pages of documents collected during the Columbine school shooting investigation. It is mostly stuff of Eric Harris's. This has pretty much EVERYTHING he ever wrote and never shot out. Diaries, school papers, report cards, chat logs, e-mails. Everything.
You can find the documents all grouped together in
http://i.a.cnn.net/cnn/2006/images/07/06/columbine.pdf - be warned, its over 30 megs.
Look through it and post anything you find interesting.