Fools were out and about this week in an investing world jampacked with actions and ideas. Here are three articles you might find useful as you decide how to invest your money.

Soros Is Buying Health Care. Should You?
You can learn a lot by watching what smart, successful investors do with their money and the billions they manage on behalf of clients. Fool contributor Brian Orelli checked out SEC filings to see what billionaire investor and investing guru George Soros was buying in the latest quarter.

You shouldn't buy a stock just because someone else did, even if that someone is a market superstar with a proven track record of success. Brian suggests instead using the actions of people like Soros to generate a watchlist of stocks.

Read the article to get Brian's take on four health-care stocks Soros was buying: Dendreon (Nasdaq: DNDN), Salix Pharmaceuticals, Mindray Medical (NYSE: MR), and Teva Pharmaceutical (Nasdaq: TEVA).

The Motley Fool Chooses Thurgood Marshall Academy for Foolanthropy 2010
The Motley Fool is a community of investors helping each other succeed. You could say that the back-and-forth among Fools is priceless, but that wouldn't be totally true at this time of year. Through Jan. 7, for each article comment, discussion-board post, blog post, and blog comment, the Fool will donate $0.10 to the Thurgood Marshall Academy charter school in the District of Columbia. Every comment or "like" on our Facebook page and every new follower to our Twitter feed also earns a dime for the school, up to a total of $20,000.

Follow the story link above to learn more about the academy and how it helps disadvantaged students prepare for success in college and success in life. Fool employees will also be offering their expertise through volunteer opportunities at the school, including teaching financial literacy and budgeting workshops to students and parents. Visit the Fool's Foolanthropy page for help getting involved in making our communities stronger.

Is This the Next Rule Breaker?
Our Motley Poll is still open for you to weigh in on whether OmniVision Technologies' (Nasdaq: OVTI) success is just beginning. Fool contributor Anders Bylund examines what is driving the company that makes backside illumination (BSI) sensor chips used in products including Apple's (Nasdaq: AAPL) iPhone 4.

As Anders writes:

Some might call it innovation. Others would point to taking calculated risks. But what it all boils down to in the end is the first-mover advantage. Using Apple as a springboard to reach other tier 1 customers like Dell (Nasdaq: DELL), Motorola (NYSE: MOT), and Samsung is just smart business, and is a proven strategy.

Are you in the mood to find the next Rule Breaker? Check out the article for more of Anders' analysis and to vote in the poll.

See a stock in this story you'd like to follow? Add it to My Watchlist, which will find all of our Foolish analysis on it.

Fool online editor Kris Eddy owns no shares of any stocks mentioned in this article.

Mindray Medical is a Motley Fool Rule Breakers choice. Apple is a Motley Fool Stock Advisor selection. The Fool owns shares of Apple and Teva Pharmaceutical. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.