Certainly the alt-energy bubble. Read this, it's old from 01/2008 but still relevant: http://seattlest.com/2008/01/17/the_next_market.php http://seattlest.com/

Certainly the alt-energy bubble. Read this, it's old from 01/2008 but still relevant: http://seattlest.com/2008/01/17/the_next_market.php http://seattlest.com/2008/01/17/the_next_market.php