1. Apple. Fast growing, expanding into China. Also, look up how much their stores earn per square foot of space in the store, and compare this to other stores. Apple is making a huge profit.
2. Netflix. New technology, pretty much has a monopoly on it.
3. Baidu. Internet search engine, based in China. Adding many new users each day. Google can't compete because Baidu is local, has a larger market share of the Chinese market, and Google has qualms about privacy issues regarding users that Baidu does not have.
4. Salesforce.com. Cloud computing. New technology, has largest share of that market.
5. Bank of America. Stock price has been depressed, large amount of recent insider trading, they are now integrating with their Merrill Lynch acquisition and expanding their investment and brokerage services, which may bring in more clients.
If you don't like these, then pick an MLP (Master Limited Partnership). Examples are Kinder Morgan Energy (KMP) and Enterprise Partners (EPD). They own transportation services (like oil or gas pipelines) and make their money by signing contracts with energy companies to transport their oil, or gas, or whatever. The money they earn depends upon the contract that was signed, not on how much stuff was transported or what the cost of oil or gas is. So their share prices stay fairly steady, but they pay out whatever they make in profit (it's how MLPs work) to the shareholders. If you pick one of them, you stand a good chance of making some money on them by the end of the semester because their prices usually don't change much, and all you have to do is wait for the dividend. (Of course, their share price can go down, but it is usually fairly stable.)