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

The Wrong Way to Invest in Emerging Markets
Investing in companies outside the United States is good for your financial health, but if you're one of the people with money in the iShares MSCI Emerging Markets Index (NYSE: EEM) -- the most popular vehicle for international investing, with an astounding $41.7 billion worth of assets -- you're making a mistake, according to Motley Fool Global Gains advisor Tim Hanson.

A look at the index's stock holdings leads Tim to conclude that it's investing in sectors "where emerging markets have been; not where they're going."

Check out the article for more from Tim, as well as a handy pie chart on the sector breakdown of the Global Gains stock recommendations. "[I]f you think emerging markets are entering a new era of rising consumer spending power, infrastructure development, and more diverse, sustainable development," Tim writes, "then there are better and far more profitable ways to play that belief than via the iShares MSCI Emerging Markets index."

Get Smart About Selling Your Stocks
Investing is about so much more than buying stocks. Fool editor and writer Dan Caplinger this week shared with us the importance of keeping an eye on your stocks so you know when to sell them. "You should never give an investment a free pass, especially if it has created losses for you recently," Dan writes.

Southern Copper (NYSE: SCCO) and Mosaic (NYSE: MOS) are two of the examples Dan gives of how investors could have lost most or all of their gains if they didn't see the warning signs ahead of time. Read the article for his advice on three things to look for when regularly reviewing whether stocks deserve to stay in your portfolio.

Today's Buy Opportunity: Cal-Maine Foods
Fool analyst Nick Kapur made a good point in his "11 O'Clock Stock" recommendation of Cal-Maine Foods (Nasdaq: CALM) about how investing doesn't have to be a heart-thumping experience.

"Eggs are truly boring business, and I typically don't cast an eye toward slow-growth, commoditized industries for new investment dollars," Nick writes. "But if market outperformance is what gets your motor humming, check out Cal-Maine, a family-owned business that also happens to be the nation's largest producer, packager, and distributor of shelled eggs in the U.S. At today's prices, the stock looks truly eggs-cellent."

See the article for all of the good points Nick made about Cal-Maine's strengths, the risks it faces, and the growth numbers it's been posting. If you have a really good egg pun, please include it in the comments section.

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True to its name, The Motley Fool is made up of a motley assortment of writers and analysts, each with a unique perspective; sometimes we agree, sometimes we disagree, but we all believe in the power of learning from each other through our Foolish community.

Fool online editor Kris Eddy owns no shares of any stocks mentioned in this article. The Fool owns shares of Cal-Maine Foods. Try any of our investing newsletter services free for 30 days. The Motley Fool has a disclosure policy.