Sifting through the trash

In these days of instant information, it helps to have a few sources to sort the wheat from the chaff. For instance, say you want to know how much of a new non-fiction best-seller is on the up and up. You want to believe the author, but you're just not sure. What do you do? Two great sites that eschew obfuscation are Factcheck.org and Politifact.com. The latter measures the accuracy of a politico's statement on a scale from "Truth" to "Liar, Liar, Pants on Fire!"