There is a new website out called LikeAssets.com, which tracks the performance of the portfolios that have been published in blogs and compares them to a benchmark based on the type of portfolio. The investor can look up the various portfolios of different publishers to see how the performance has been for the publishers' portfolio.
According to the site, all of the portfolios of Stockerblog.com have had a gain of 63% since January of 2009, versus the benchmarks gain of 33%. This site also lists the top five portfolios along with their returns. The top one is the Below Book High Yield Stocks portfolio up 179%, and the second highest was Stem Cell Stocks which was up 102%.