Many investors need income, especially as they reach retirement. They look for ancillary cash flow to supplement their Social Security payments and any retirement benefits from a company for which they've worked. But those aren't the only investors who should be interested in income.

That's because studies show that dividends are a significant contributor to overall performance of a stock. When held for years, a stock's dividend can help diminish the volatility of a stock's price and keep returns reasonable, especially in down markets. Here are five stocks that have decent income as well as potential capital gains. All are exceptionally financially strong.

Wall Street appears ready to claim a third straight day of gains as stocks continue a rally cheered by brighter economic news and expectations of higher corporate profits. All three major U.S. indexes -- the Dow Jones industrial average, the S&P 500 and the Nasdaq composite -- were higher in premarket trading Wednesday morning.

Yesterday, the Dow Jones industrial average had its second-straight day of double-digit point gains, picking up 131.50 to end at 9,731.25 after Australia boosted interest rates citing an improved economy and earnings expectations that rose for the just-concluded third quarter.

TheStreet.com's Jim Cramer says Research In Motion's troubles are an exception to the greatness of the mobile Internet theme.

No, this isn't meant to be a bullish article. I am just trying to put Research In Motion (NASDAQ: RIMM) (Cramer's Take) in perspective because I think that people will confuse the greatness of the mobile Internet theme with the hazards of investing in the BlackBerry maker.

First, you have to ask yourself, what really went wrong with RIMM? Was it demand? No, demand was strong. They actually guided to the upper end of units. The issue was average selling price because it has gotten more competitive out there.

"The Dogs of the Dow strategy has a long-term history of outperforming the Dow Jones average," notes technical expert Gerald Appel.

In his Systems & Forecasts, he explains, "The theory is that the highest yielding stocks are undervalued and should have the greatest change of appreciating." Here, he reviews the five highest yielders.

"In calculating a formal track record for the strategy, dividend yields are ranked on the last trading day of each year. However, there is no reason why you are limited to ranking stocks only at the end of the year.

"The current market climate appears favorable for using this strategy to garner investment income, since market risk appears below normal and investment income is getting hard to come by.

"Our favorite and steadiest U.S. telecom recommendation is Verizon Communications (NYSE: VZ)," says Martin Weiss.

He explains, "We've always liked their steady-Eddie business and their tradition of paying handsome, predictable dividends." Here's the latest from the "conservative portfolio" section of his The Safe Money Report.

"I remain optimistic that now is a good time to be purchasing high-yielding assets," says growth and income expert Bryan Perry.

Indeed in his industry-leading The Cash Machine, the advisor adds two growth and income picks to his buy list: AT&T (NYSE: T) and Verizon (NYSE: VZ). Here's his assessment.

"Even if you are forecasting a recovery in mid to late 2010, you should be aggressively buying strategic high-income assets over the next three to six months.

TheStreet.com's Jim Cramer says if the company you're looking at is a player in the mobile Internet space, it's probably a good bet.

Does it have smartphone exposure, or doesn't it? That is the question. When I look at what's moving in tech and what's become sullen and gloomy, there's only one compass: smartphones. Think about what's moved this week: Cree (NASDAQ: CREE) (Cramer's Take), Tellabs (NASDAQ: TLAB) (Cramer's Take) and ADC Telecom (NASDAQ: ADCT) (Cramer's Take). These are terrific plays in the smartphone food chain and are included in the "Mad Money" Mobile Internet Index.

ADC Telecom is Chinese Internet infrastructure, and we know that China's spending $40 billion to build out infrastructure that can allow aggressive adoption of smartphones. Tellabs has been waiting for next-generation telecom orders -- smartphones. I think the fact that it announced a giant buyback -- it matters when the stock is this small -- is the signal needed to suggest they are getting orders.

Comcast (NASDAQ: CMCSA), the high-profile cable and Internet provider, produced some good second-quarter stats on Thursday. Reuters says that the 33 cents per share earned in the period beat estimates by 7 cents. According to the company press release, sales increased over 4% and operating cash flow expanded by over 5%. Free cash flow, however, was flat in Q2.

That wasn't a big deal, though. The free cash covered both the dividend and the monies used to repurchase shares. In fact, Reuters reported that the buyback activity in the quarter represented a resumption of the program. We can take that as a positive sign of confidence from management.

Here are some highlights from last week's earnings coverage from BloggingStocks:

• Amgen Inc. (NASDAQ: AMGN) reported strong Q2 earnings thought revenue fell but beat analysts' estimates.
• Colgate-Palmolive Co. (NYSE: CL) beat Q2 earnings estimates but revenue suffered from currency effects.
• Dow Chemical Co. (NYSE: DOW) reported a drop in Q2 revenue and a net loss on restructuring charges.
• Eastman Kodak Co. (NYSE: EK) posted a deeper-than-expected Q2 net loss as sales plunged.
• Exxon Mobil Corp. (NYSE: XOM) reported its lowest quarterly profit in years, well short of expectations.

TheStreet.com's Jim Cramer says if you wait for market conditions to reach perfection, you'll be waiting a long time.

You know what? I am going to wait until I am sure housing has turned before I buy the homebuilders like Lennar (NYSE: LEN) (Cramer's Take) and Pulte (NYSE: PHM) (Cramer's Take). I am going to wait until the foreclosures peak before I buy Bank of America (NYSE: BAC) (Cramer's Take) and Wells Fargo (NYSE: WFC) (Cramer's Take).

I am going to wait until unemployment goes down before I buy 3M (NYSE: MMM) (Cramer's Take) and Disney (NYSE: DIS) (Cramer's Take) and IBM (NYSE: IBM) (Cramer's Take) and Caterpillar (NYSE: CAT) (Cramer's Take).

Everything was looking up this morning, up until the reaction to companies and their earnings reports. The market felt directionless all day after losing its initial gains despite a new home sales data release that was well above expectations. Ben Bernanke defended his stance on avoiding the next depression. The SEC also issued new short sale abuse guidelines.

Here are today's unofficial closing bell levels:

Dow 9,108.59 +15.35 (0.17%)
S&P 500 982.19 +2.93 (0.30%)
Nasdaq 1,967.89 +1.93 (0.10%)

Top 10 Analyst Upgrades and Downgrades

The only DOW component reporting earnings this morning is Verizon Communications (NYSE: VZ). The nation's largest wireless carrier reported second quarter numbers that fell inline with analyst estimates.

Going into this morning's earnings report, analysts polled by Thompson Financial expected Verizon to earn 63 cents per share. Excluding merger and various one-time labor costs, Verizon was able to match that number.

Christine A. Varney heads up antitrust at the Department of Justice, and she's going hunting. She is the point person for a group consisting of the presidential administration and some Congressional Democrats that is looking to put the breaks on large companies in several industries.

Already, airlines have run into roadblocks when requesting relief from antitrust regulations. Varney & Co. are digging into complaints by AT&T (NYSE: ATT) and Verizon (NYSE: VZ) that cable competitors – e.g., Cablevision (NYSE: CVC) – have locked them out of the market for cable company-produced programming.

(Imagine that, a phone company complaining! Usually, they're the objects of derision.)

U.S. stock futures advanced Monday morning, ahead of yet another week full of corporate reports, with some heavyweights already reporting this morning. Investors will be looking to see if results continue to top projections on average. Meanwhile, investors will digest some of Bernanke's remarks as they await more housing data due out after the market opens.

[Update 9:00 a.m.: Futures turned direction following several disappointing earnings reports this morning.]

Markets have rallied the past two weeks alongside earnings season. This week, over 140 companies of the S&P 500 are due to report. This morning it is Aetna (NYSE: AET), Amgen (NASDAQ: AMGN), Honeywell International (NYSE: HON) and Verizon Communications (NYSE: VZ). Analysts are raising U.S. profit estimates for the first time since credit markets froze two years ago, with the S&P 500 earnings estimates now at $74.55 a share next year, up from $72.54 in May, indicating a potential 26 percent increase in the S&P 500.

"We are at the early stages of witnessing a transformation of wireless activities away from voice and towards data for both personal and business customers," says says Ian Wyatt.

In his The Recovery Portfolio, he explains, "This portends great things Verizon Communications (NYSE: VZ), which has the best wireless network in the U.S. (For more on Verizon, see my recent post, The Safest Dividend in the Dow.)

"Verizon provides wireline service to 35 million access lines and 87 million wireless customers. It recently picked up 13 million of these wireless subscribers upon completion of its $28 billion purchase of privately held Alltel in January.

"My investment thesis for Verizon is all about growth in its wireless operating segment. Smartphone penetration, which is more profitable for Verizon, is still small and growing very rapidly.