Team Infidel
Forum Spin Doctor
Artificial intelligence expert Oren Etzioni's Web site, farecast.com, attempts to predict the best time to buy airline tickets. It is one of several new sites this summer tapping into online travel sales. Another is yapta.com. The online travel business has grown by a rate of nearly 30 percent each year since 2002. Last year, $80 billion in revenue was generated online.