A cool tool can be any book, gadget, software, video, map, hardware, material, or website that is tried and true. All reviews on this site are written by readers who have actually used the tool and others like it. Items can be either old or new as long as they are wonderful. We post things we like and ignore the rest. Suggestions for tools much better than what is recommended here are always wanted.
Paul Saffo is a technology forecaster based in Silicon Valley. An Adjunct Professor in the School of Engineering at Stanford University, Saffo teaches courses on the future of engineering and the impact of technological change on the future.