The Motley Fool's CAPS investing service is a great way for investors to work together to beat the market. Among other features, CAPS lets users blog about their picks, investing strategies, market view, favorite rugby team, or whatever floats their boat.

As CAPS blogging catches on, players keep adding quality content on a daily basis. I've dug through the past week's posts to find some of CAPS' best insights. With room for only seven posts here, I can't possibly cover all of the great stuff in the CAPS blogosphere, so when you're done reading this article, I highly recommend that you head over to CAPS and keep going.

In investing, being a flip-flopper is a virtue
Responding to criticism over a change in position on monetary policy, economics legend John Maynard Keynes once said, "When the facts change, I change my mind. What do you do, sir?"

In his recent blog post, CAPS player StatsGeek extols much the same advice. He notes that although politicians often get kudos for having extreme conviction, being able to admit when you're wrong and take the right course of action is a great asset for an investor.

The crude watch
Right as many claim that we're headed toward, or are already in, a recession, oil prices have started to heat back up again and are exceeding $100 per barrel. That's great for companies like Chevron (NYSE: CVX) and Exxon, but not so much for consumers.

With a slowdown upon us, though, not everybody thinks oil prices will be able to stick at these elevated levels. CAPS blogger dwot recently gave her reasons for why we should expect oil prices to soften up a bit.

"American Gangster": lessons in business and strategy
Any time you can tie in a popular movie and investing, I'm there. In this blog post, btown819 shows what he thinks the movie American Gangster can teach us about business.

Fear, greed, and loathing in Las Vegas
Since I live in Las Vegas, I couldn't help enjoying this blog post from bellard. Our blogger does a great job chronicling some real-world data he collected on a few trips to Las Vegas during and after the real-estate boom, and he shares his conclusions for what lies ahead for housing and the U.S. economy.

Lennar and U.S. real estate
In a recent blog post, homebuilding guru floridabuilder tackles the recent Lennar (NYSE: LEN) buyout rumor and talks about why most of the world still considers U.S. land the gold standard in real estate.

Interesting insiders buying
It's been said that company insiders sell stock for a variety of reasons, but that they buy it for only one: to make money. CAPS blogger TMFSarahGen takes a look at the insider action from Vertex Pharmaceuticals (Nasdaq: VRTX), Coldwater Creek (Nasdaq: CWTR), Chesapeake Energy (NYSE: CHK), and American Eagle (NYSE: AEO).

Just stop talking about recession!
In a recent blog post, leohaas shares the thoughts from Toll Brothers (NYSE: TOL) management on what's really hurting the housing market.

And that's our roundup for this week. Be sure to check back next week for more great blogging action. In the meantime, why not head over to CAPS and add your two cents to the community pool?

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Chesapeake Energy is an Inside Value pick, and American Eagle is a Stock Advisor pick. The Motley Fool also owns shares of American Eagle. Vertex Pharmaceuticals is a recommendation from Rule Breakers. You can try out any of these newsletter services free for 30 days.

Fool contributor Matt Koppenheffer shares some thoughts of his own on his CAPS blog. He does not own shares of any of the companies mentioned. The Fool's disclosure policy gives all glory to the Hypno Toad.