When a stock hits a fresh low, it can either signal a dirt cheap dream stock or a dreadful stock to avoid. Separating the wheat from the chaff is difficult, but finding well-run companies at bargain-basement prices is a great way to accumulate a fortune over the long run.

With that in mind, we'll use the aggregate intelligence of the 115,000-plus investors participating in Motley Fool CAPS to see what the community is saying about stocks hitting 52-week lows today. The community's approval (as signified by four- and five-star ratings) could be a sign that further research is in order.

Here are three such stocks:

Company

Today’s Low

Industry

CAPS Rating

Fools Saying Outperform

ONEOK (NYSE:OKE)

$42.20

Utilities

*****

271 of 277

Zoltek Companies (NASDAQ:ZOLT)

$17.75

Industrial

***

638 of 686

Guangshen Railway (NYSE:GSH)

$20.75

Transportation

*****

441 of 456

Source: Motley Fool CAPS, as of Aug. 11, 2008.

Other five-star utility companies:

  • Duke Energy (NYSE:DUK) -- stock price is 6.8% cheaper than a year ago.
  • FPL Group (NYSE:FPL) -- down 0.2% in the past year.

Other five-star transportation companies:

  • Burlington Northern Santa Fe (NYSE:BNI) -- up 25.9% in the past year.
  • Canadian National Railway (NYSE:CNI) -- down 1% in the past year.

Come and join us on CAPS to learn more about these and countless other interesting stock ideas. Click here to sign up.

Fool analyst Dan Dzombak does not have a financial position in any of the stocks mentioned in this article. ONEOK and Duke Energy are Motley Fool Income Investor picks. Canadian National Railway is a Motley Fool Stock Advisor recommendation. Try any of our Foolish newsletters today, free for 30 days. The Motley Fool has a disclosure policy.