Portals: Entering Your Neighbor’s World is now available for all e-readers, including Kindle, at Smashwords. It is also available at Amazon’s Kindle Store. It should be available in print in a few weeks.
The site is under construction. New content supporting Portals, including videos, will be coming online soon, and other books and resources will be announced here in the coming months. We’re new at building websites, so bear with us until we get things more under control.