Book excerpt: Validea.com, a Web site that ranks and evaluates stock picking professionals based on the performance of their ideas, is the first comprehensive, ongoing effort to hold investment gurus accountable. Now, for the first time, individuals can explore each guru and his methodology and apply that methodology to their own investing decisions. In The Market Gurus John Reese and Todd Glassman, experts in computertized investment decision making, takes readers through the ins and outs of financial strategies developed by the cr'me de la cr'me of the industry - stars such as Peter Lynch, Warren Buffett, David Dreman & James O'Shaunessy. Along the way readers will learn time tested methods to help make smarter investing decisions.