Chuck's Robotics Notebook "serves as a journal and knowledge repository for the aspiring roboticist" and includes sections on circuits, projects, and controllers. A section on Complete Robots describes some of the robots he has built and includes some photos. A "bibliography of sorts" provides his favorite books and articles "so that you can build a 'Mechatronic' library of your own." The second website, Hobby Engineering, is more of a clearinghouse for robotics supplies, but also provided is some information on robotics. Chuck describes robotics as "a fun, challenging activity that also develops important skills in subjects as diverse as reading, researching, critical thinking, problem solving, mechanics, electronics and software." The Robot Builders Menu and Guide describes the components that go into a robot, including tools and kits you can purchase through them online.