Last December, over 100 stocks were featured in our Top Picks for 2007 report. Now, at mid-year, we turn to the 20 advisors whose picks showed the strongest gains to get an update on their previous picks, as well as a new favorite stock for the second half of the year.

Chris Mayer, editor of Capital & Crisis, chose Rosetta Resources Inc. (NASDAQ: ROSE) as his top pick for 2007. The stock rose 32%, as of June 1, 2007. Here is Chris's original recommendation for Rosetta and his new favorite stock for the rest of 2007.

Updating Rosetta, the advisor now says, "I continue to like ROSE, which should increase production greatly this year. The company is in good financial shape. It still has a relatively low-risk portfolio of drilling projects.

"I also feel good about the future of natural gas prices. In a world where we're draining the conventional natural gas wells at a fast rate, large fields of relatively untapped gas potential in the lower 48 are going to be worth a lot. Rosetta has that in its Rio Vista interests.

The company also keeps blowing away estimates. In the March quarter, earnings came in 33% better than analysts expected. In December, they beat the consensus by 24%. All of this and it still trades for a reasonable multiple -- only 14 times next year's (too low) estimate."