These sites provide additional information:

Biases Affecting Information Processing
Do you believe everything you read? Professor Robert Harris describes factors which affect how we react to information.

Evaluation of Information Sources
Guide to the growing body of literature on this topic available on the Web.

Evaluating Information Found on the Internet
"This document discusses the criteria by which scholars in most fields evaluate print information, and shows how the same criteria can be used to assess information found on the Internet."

The Right Stuff: Research Strategies for the Internet Age
This essay describes specific searching and evaluation techniques that will help college students to do  research effectively.