Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.
The Web contains thousands of white papers and blog postings related to specific reputation issues, such as ratings bias and abusing karma. The list here is a representative sample. We maintain an updated, comprehensive list on their Delicious bookmarks: http://delicious.com/frandallfarmer/reputation and http://delicious.com/soldierant/reputation.
A Framework for Building Reputation Systems, by Phillip J. Windley, Ph.D., Kevin Tew, Devlin Daley, dept. of computer science Brigham Young University. One of the few papers that proposes a platform approach to reputation systems.