市场研究工具

Board Tracker        http://www.boardtracker.com/

Big Boards      http://www.big-boards.com/

CB Engine      http://www.cbengine.com/

Terapeak        http://www.terapeak.com/

Google Trends              http://www.google.com/trends

Ebay Pulse      http://pulse.ebay.com/

Amazon Bestsellers        http://www.amazon.com/gp/bestsellers/

Zoomerang     http://www.zoomerang.com/

Forrester        http://www.forrester.com/rb/research

Hoovers  http://hoovers.com/free/

Ebay Research Labs      http://labs.ebay.com/

Digg Lads       http://labs.digg.com/