There's a reason why more than 30,000 investors flock to Omaha each May, and millions more rummage through the Berkshire Hathaway annual reports: Gleaning knowledge from proven investors is one way to find the stocks that will make you rich.

Using Motley Fool CAPS, the Fool's 135,000-plus-member investing community, we can see which stocks are receiving a boost in attention from CAPS All-Star players each week. A sudden increase in bullish interest from top-rated investors could signal that the stock deserves further research.

Here are four stocks receiving more support from CAPS All-Stars over the past month:

Company

Industry

% Change in All-Star Bulls From 5/18 to 6/17

CAPS Rating (out of 5)

CAPS Research

Orthovita, Inc. (NASDAQ:VITA)

Health-Care Equipment and Supplies

56%

5 Stars VITA

Origin Agritech Ltd. (NASDAQ:SEED)

Food Products

56%

3 Stars SEED

Aceto Corp (NASDAQ:ACET)

Trading Companies and Distributors

50%

5 Stars ACET

Sinovac Biotech Ltd. (AMEX:SVA)

Biotechnology

49%

4 Stars SVA

Source: Motley Fool CAPS, as of June 17, 2009.

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No individual person selected the stocks in this article, so there is no author to disclose an interest in them. Since this article was automatically generated by identifying the stocks loved both by the CAPS community and by buyers in today’s market, it is possible that Motley Fool personnel (and even The Motley Fool itself, through our Million Dollar Portfolio, Motley Fool Pro, and Ready Made Millionaire services), have positions in these stocks. We thought you'd like to know that. You can learn more about The Motley Fool’s disclosure policy here.