Chegg, an online textbook rental company, up to now has been doing pretty well. http://techcrunch.com/2010/06/05/teardown-chegg/ http://techcrunch.com/2010/06/

Chegg, an online textbook rental company, up to now has been doing pretty well. http://techcrunch.com/2010/06/05/teardown-chegg/ http://techcrunch.com/2010/06/05/teardown-chegg/ Chegg's revenue is going to take a hit if Amazon is competing in the same space.