The answer is simple: buy his book and read it. It will cost you less than one commission at a major online brokerage firm.
Markmans book is different. While it provides a virtual encyclopedia of websites, it starts with the models he uses for creating the portfolios that are tracked on the MS Investor website. Ranging from screening and selecting ten stocks for a year to changing the portfolio on a monthly basis, the results will get your attention. (Recently, his high turnover monthly portfolio had provided a gross appreciation of 588 percent for this year. With appreciation like that, you can afford tax inefficiency.)
From there he branches out and leads you through every aspect of gathering information on investments.