Skepchick Magazine: Online magazine promoting scientific skepticism among women. Offers online forum and a blog. Skepdudes welcome too.
Center for Inquiry Freethought, humanistic organization promoting rational thinking. Publishers of Free Inquiry and
Skeptical Inquirer magazines.
James Randi Educational Foundation "The Amazing" Randi. Magician and demystifier of paranormal and pseudoscientific claims.
Footsteps on the Arctic Cameron M. Smith's solo winter Arctic expedition page. It's cold up there!
The Manteño Expedition John Haslett and crew build and sail replicas of huge pre-Columbian Ecuadorian balsa rafts.
The Mars Society To further the goal of the exploration and settlement of the Red Planet.