The Center for Critical Thinking and a 
CRITICAL THINKING CONSORTIUM 

Michael Shermer's "THE SKEPTICS SOCIETY" AND "SKEPTIC MAGAZINE"

Carl Sagan's BALONEY DETECTION KIT 
A collection of suggested as tools for testing arguments and detecting fallacious or fraudulent arguments and warning signs that suggest deception, based on the book "The Demon Haunted World" by Carl Sagan. 
. (here's another link to my copy of that page in case it disappears)

CSICOP (The Committee for the Scientific Investigation of Claims of the Paranormal) and their 
Skeptical Inquirer: The Magazine for Science and Reason

The Skeptic's Dictionary
A Collection of Strange Beliefs, Amusing Deceptions, and Dangerous Delusions
and The Skeptic's Refuge: Documenting the lunacy and delusions of the new millennium. The Skeptic's Refuge is your gateway to The Skeptic's Dictionary with over 400 skeptical articles on the occult, the supernatural, the paranormal and the pseudoscientific. Here you will find articles critical of the way the mass media treats paranormal or occult subjects, as well as book reviews, an occasional WWW site review, links to skeptical essays and skeptical homepages, and a vast bibliography of skeptical literature. In addition, you'll find reviews of news articles of interest to skeptics and critical reports on internet scams.

JREF (James Randi Educational Foundation) 
A not-for-profit organization founded in 1996 that promotes critical thinking by reaching out to the public and media with reliable information about paranormal, pseudoscientific and supernatural ideas so widespread in our society today.

Colorado Citizens for Science

Quackwatch 
Your Guide to Health Fraud, Quackery, and Intelligent Decisions

Council for Secular Humanism and their 
"Free Inquiry" magazine 
The Council for Secular Humanism cultivates rational inquiry, ethical values, and human development through the advancement of secular humanism.

Families In Reason  
(Please start a group like this somewhere in the Boulder area. Even though I don't have any children of my own and might not ever, I'll join and help support it. I think it's that important.)
This program is to support freethinking parents in the Tampa Bay, Florida area through discussion and activities, in order to encourage critical thinking, reasoning, and objectivity in our children. We aim to provide educational resources on non-theistic points of view, as well as informational resources on other philosophies for objective comparison. We promote the separation of church and state for the benefit of all Americans. We strive to create awareness through community presence by participating in local efforts to improve upon our environment physically and socially. We support local programs which emphasize creativity and human ingenuity through art and sciences.

Freethinkers of Colorado Springs  
A Haven for Freethought, Logic, and Reason!
"Strength comes from knowing, weakness comes from thinking you know for sure" ...when you really don't.

Resources for Independent Thinking 
Educational tools to help people think for themselves and increase their critical thinking skills.

Skeptic Report 
"Pay attention to the writing on the wall"

The Skeptic's Annotated Bible

THE ROB NELSON SHOW 
(This show didn't last on the air very long. I know there's not much of a market for a level-headed, clear-minded, critical thinking, reasoned approach to things in this culture, but we sure do need it. Please bring this show back on the air.) 
What separates THE ROB NELSON SHOW from other talk shows? Rob! He’s a regular guy and his life experiences give him a unique understanding of the world in which we all live. Often described as the GenXer’s answer to Donahue, Rob probes, pushes and looks for answers with a keen wit and warm sensitivity. Now he’s taking one of daytime’s most successful formats and reinventing it for the 21st century.

Watching You Dot Com
From their front page intro... "Welcome to Watching You Dot Com. We've been busy annoying folks online since 1995. If you're looking to kill some time and have a sense of humor, this is the place! If you're uptight and easily offended, I highly recommend that you hit the back button on your browser right now!"