"KaChing, a Web site where 400,000 amateur and professional investors manage virtual portfolios. Others have logged on to see what the investors on the site are doing and make the same trades in their own real portfolios.
On Monday, KaChing is to add a new twist. Customers can set up brokerage accounts that automatically mirror the trades of a money manager, some of them professionals.
“The idea of an asset manager showing all his research, his holdings — it’s unheard-of,”"
Monday, October 19, 2009
KaChing Lets Investors See and Mirror Experts’ Trades - NYTimes.com: