They're usually free. You either laugh, cry, or retch. And if you notice creationists attempting to take over your local school board, contact The National Center for Science Education. They're dedicated to fighting this kind of paranormal fanaticism. The Institute of Human Origins is Donald Johanson's organization.
Important research regarding humanity's origins occurs here.
Read his testimony and find out why. There's just one problem. The Mount St. Helens Creation Information Center is a humble little information center that attempts to promote creationism in southwest Washington State. Skepticism The Society for Sensible Explanations is Seattle's oldest, and most established organization for skeptical discussion and investigation. Visit their website periodically for dinner and lecture announcements.