Here's a tidbit of useful information posted to Usenet by a well-meaning person. It's a useful analysis of the methods used by propaganda of all sorts to infiltrate your thoughts and make you agree with the message being presented by the medium. Apply these pointers to commercials when you watch TV and realize how much of what you see is really Conspiracy propaganda.
AdBusters Media Foundation
Alternet: Alternative News
FAIR: Fairness and Accuracy In Reporting