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.

The World's Copper Cauldron Boils Over
Have you had it up to here with gold but still want to put your money to work in the world of metals and mining? If yes, then check out Fool contributor Christopher Barker's look into the world of copper supply and demand and what's coming down the pike.

"I believe copper is going higher, and I encourage Fools to participate," Christopher wrote. Of course, you can't invest based on just that statement. So check out the article to see what Christopher has learned from research that includes paying attention to companies including Freeport-McMoRan Copper & Gold (NYSE: FCX) and Joy Global (Nasdaq: JOYG). He's also watching analysts and international markets, and he has two stock suggestions in the copper sector.

Stock Picks With Chicks: Estee Lauder's Fresh Face
This week, Motley Fool "chicks" Alyce Lomax and Dayana Yochim recommended Estee Lauder (NYSE: EL) to investors. "We want a company whose good looks are more than skin deep. And in the cosmetics space, that company is Estee Lauder," they wrote.

Dayana and Alyce contrast Estee Lauder's wide distribution network, including department stores, drugstores, and the Internet, with Avon's (NYSE: AVP) direct-selling distribution channel. They also note some of Estee Lauder's innovations in the cosmetics industry, such as providing luxurious metal lipstick cases when plastic was the norm.

Read the article to see why you shouldn't be scared off by Estee Lauder's stock price and to watch Alyce and Dayana's "Stock Picks With Chicks" video.

Howard Stern Is Back Where He Belongs
Phew. You don't have to endure another weekend not knowing whether Howard Stern will renew his contract with Sirius XM Radio (Nasdaq: SIRI). He's on board for another five years, he announced Thursday. "The bonus in the deal is that Stern's show will now be available on mobile devices," Fool contributor Rick Munarriz wrote.

Do you agree with Rick that "this is the best resolution possible for both parties"? What about some Foolish readers' comments that it's hard to judge how well Sirius XM made out without knowing how much Stern's getting paid? See the article and join the debate. Each comment you post will send $0.10 to the Thurgood Marshall Academy charter school, the beneficiary of this year's Foolanthropy campaign.

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Fool online editor Kris Eddy owns no shares of any stocks mentioned in this article. The Motley Fool has a disclosure policy.