It's no secret, of course, that the Internet is chock-full of information. Although much of it is solid and reliable--and, yes, even entertaining--much of it, sadly, is not. As we write this, the Web search engine Google, for instance, informs visitors that it sifts through 2,073,418,204 Web pages--and those are just the ones it "knows" about. How, you may be wondering, is the average time-crunched science-and-technology aficionado to find the best sites with a minimum of fuss? We're glad you asked. In this, our second annual Scientific American.com Sci/Tech Web Awards, the editors have again done the work of sifting...