It's certainly not difficult for investors to find high-yielding stocks these days, particularly among beaten-down financials. Idearc (NYSE:IAR) for instance, features an incredible yield of more than 100%! 

As the saying goes, however, some things are too good to be true, and unfortunately that's the case with Idearc's yield. After all, the yield looks at trailing dividends -- you know, before the company started having big problems. In March, Idearc said it would discontinue its dividend altogether.

Toil and trouble
As a general rule of thumb, any dividend yield more than three times the market average should be approached with caution, and it definitely merits extra research. At present, the S&P 500 average yield is 2.2%, so any yields greater than 6.6% would occupy this danger zone.

See, what matters when it comes to high-yield investing is the sustainability and potential growth of a company's dividend. If dividends are important to you, you don't want to end up with a stock like Fifth Third Bancorp (NASDAQ:FITB), which has cut its dividend by more than 65%. Among other things, it's important to look for stocks with sufficient dividend coverage, modest debt, and a history of increasing dividend payments.

Let's find some
To narrow our search to a few good names, we'll enlist the help of our Motley Fool CAPS screener and search for larger stocks with:

  • Yields greater than 3.5%.
  • Below-market price-to-earnings ratios.
  • Four- and five-star CAPS ratings.

The last bullet point is particularly important, because we've found that four- and five-star stocks outperformed the market by a wide margin from November 2006 to July 2008.

Without further ado, here are a group of five top-rated high-yielding stocks, according to our 115,000-member CAPS community:

Company

CAPS Rating

Yield

Research

Xcel Energy (NYSE:XEL)

****

4.6%

XEL

Duke Energy (NYSE:DUK)

*****

5.2%

DUK

Vodafone (NYSE:VOD)

****

7.9%

VOD

Frontline (NYSE:FRO)

****

19.4%

FRO

Taiwan Semiconductor (NYSE:TSM)

*****

4%

TSM

Source: Motley Fool CAPS as of Aug. 21, 2008.

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Duke Energy is a Motley Fool Income Investor recommendation. Try any of our Foolish newsletters today, free for 30 days.

Todd Wenning follows a portfolio of high-yield stocks on CAPS, which you can see by clicking here. He does not own shares of any company mentioned. The Fool's disclosure policy rocks on with its bad self.