One of my favorite Web sites is called Wikipedia. This terrific site allows ordinary users to enter encyclopedia definitions. Over time, the entries can be as reliable as a commercial encyclopedia, and a lot more complete.
You can find out a lot about upcoming and current Dummies books at www.dummies.com. You might even find this book mentioned there.
If you want to know what's happening on the Internet today, check out popurls.com. This site site aggregates a bunch of social networking sites