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

As CAPS blogging catches on, players add more great 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 here, I highly recommend checking out some more.

2008 predictions
The beginning of the year is time for making predictions about the 12 months ahead. While StatsGeek is skeptical that anybody has a crystal ball that can see through the fog of time, he has gone ahead and given his look ahead. His predictions are hardly encouraging, but they should give bulls and bears alike something to think about.

Urgent shareholder action
The manager of TMFHollywoodDan's CAPS-Portfolio Fund, H. Wood Daniel, is back at it, letting shareholders know what's going on with the fund. Recent times have been tough for the fund, but that doesn't mean that Dan has lost his great sense of humor:

Fact: Math is hard. It has come to my attention that a square root is not a vegetable. This mistake wasted valuable time searching farms, and has negatively affected my financial models, which I'm also told are not traditionally done with Cranium Putty.

Is Bank of America smarter than I think?
Let me clarify right up front that FourthAxis doesn't think that Bank of America (NYSE: BAC) is very smart. In fact, he concludes that the bank's investment and subsequent announced acquisition of struggling Countrywide Financial (NYSE: CFC) is a big mistake. Could he be wrong?

When did the stock market top out and when to expect the bottom
In an extremely lucid manner, camistocks walks through the performance of various U.S. stock market indices over the past year and relates it to historical performance during recessions and market downturns. His conclusion? Don't expect me to spill the beans. Click through to his blog!

Refiners to outperform
Outperform, you say? In the current market, the word "outperform" just sounds unnatural. However, leohaas believes that oil refiners are set to deliver some good returns. He believes that the lagging refining margins that have put so much pressure on the group are primed to head back up again, and with them major refiners like Valero (NYSE: VLO), Sunoco, and Tesoro.

Parsing through the numbers
Digging through recent economic data, nycguy seems to conclude that, thanks in part to falling home prices, our problematic market may be starting to work itself out. While he views the recent earnings release from Citigroup (NYSE: C) as a negative, he also notes that other major financials such as JPMorgan and Wells Fargo (NYSE: WFC) seem to be navigating the troubled waters somewhat more skillfully. Check out his blog for more color on his economic views, as well as his forecast for what might be ahead for major tech players like Dell (Nasdaq: DELL) and Hewlett-Packard (NYSE: HPQ).

You go, Mario Gabelli!
And finishing out with a little fun, the Fool's own Rick Munarriz (a.k.a. TMFBreakerRick) shares the impressive prescience that legendary fund manager Mario Gabelli showed in predicting ... football!

And that's our round-up 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?

More CAPS Foolishness:

Dell is an Inside Value and Stock Advisor pick, and Bank of America and JPMorgan are both Income Investor recommendations. You can try out any of the Fool's newsletters free for 30 days.

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