Mike Outmesguine, tech guru and Southern Calilfornia Wireless Users Group cofounder, has a new book out called "Wi-Fi Toys." It's a compendium of hands-on projects involving "extreme wireless technology." There's great stuff in here. It's just broad enough to avoid intimidating non-geeks, but just geek enough so that the experiments will actually work. Mike says:
This book attempts to bring readers into the fray by teaching them, step-by-step, how to build fun, useful, and k001 projects using Wi-Fi. Thanks to Wiley Publishing, the entire first chapter is available for download as a non-DRM'd PDF file here. This chapter teaches the basics of Wi-Fi and shows you how to terminate a cable and choose a pigtail for any wireless project. Also, at the last SOCALWUG meeting, I gave a highly interactive (i.e. Comments/Questions/Answers) presentation about the book. Slides here, Video here, Meeting notes here.