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With all the ups and downs in the stock market in the last week, it's not surprising that some investors have panicked. But we've also found examples of investors who have kept calm. Here are some of their secrets.

Trefis put a value estimate of $30 a share on LinkedIn as it launched its IPO Thursday. Shares actually opened at $83, raced past $100, and closed at $94.25. Wondering why the Trefis estimate is so much lower? Let's re-examine the fundamentals, and how they arrived at that number.

Picking good long-term stocks is hard, but dividend payers often prove reliable. Starting with that point, Here are some possibilities for stocks that promising in the long term.

Target-date retirement funds are supposed to be safe and conservative, but the market meltdown revealed that some funds were less risk-averse than advertised. Have they cleaned up their act -- and can you trust them with your retirement?

What Japan's nuclear incident mean for American nuclear power? For investors looking at U.S. energy stocks, it looks like a brownout may be on the horizon.

Sometimes stock movements are the result of thoughtful, well-reasoned decisions, and sometimes...well, you just have to scratch your head. Here's a roundup of five of the most foolish stock moves from the past week.

Asian food is growing in popularity, but casual dining is on a downward slide. Caught in the middle, chain restaurant P.F. Chang's could go either way. Here's a look at a stock that seems promising, but may be a bad bet.

With the majority of workers convinced that they will not receive Social Security and will be unable to retire, the market may be the best option for the future. Here's some ways to make stocks work for your retirement.

With gas prices skyrocketing and natural gas initiatives on the table, it would appear that this is a great time to invest in alternative fuels. But a look under the hood suggests that green fuels might get a red light.

While wireless use has been constantly increasing and the field of providers has been narrowing, the FCC has largely remained absent from discussion over the future of the market. The time has come for a more active and involved government presence.