just don't do it for the money. then you'll never feel like a whore.

http://www.nytimes.com/2008/04/06/technology/06sweat.html?_r=1&ei=5088&en=b9031b1ab51405e4&ex=1365134400&partner=rssnyt&emc=rss&pagewanted=all&oref=slogin