Its location among the mid Atlantic states has made New Jersey a transportation hub, a manufacturing and commerce center, and a source of plenty of investment opportunities. Twenty-four Fortune 500 companies are headquartered there. And four companies from New Jersey made Fortune's 2007 list of the fastest growing companies in the U.S.: Cognizant Technology Solutions (NASDAQ: CTSH), Celgene Corp. (NASDAQ: CELG), inVentiv Health Inc. (NASDAQ: VTIV), and Jackson Hewitt Tax Service Inc. (NYSE: JTX).

Cognizant has been on Fortune's list of fastest growing companies for the past five years. This Teaneck-based member of the S&P 500 is a global IT services firm with clients in the health care, financial services, and manufacturing industries. Cognizant's three-year annual revenue growth rate was 56 percent; its three-year annual earnings per share growth rate was 55 percent. The consensus of analysts surveyed by Thomson Financial is that Cognizant is a buy, and the company has beat Wall Street expectations for the past four quarters. The share price of $85.79 at close on Friday is up from the 52-week low of $67.60 in September. The price has risen since Cognizant announced a stock split and share repurchase program in September, and the Motley Fool has since dubbed Cognizant a hypergrowth stock.

Summit-based Celgene is a biopharmaceuticals firm involved in cancer treatment and stem cell research. Its three-year annual revenue growth rate was 48 percent; its three-year annual earnings per share growth rate was 33 percent. The consensus of analysts surveyed by Thomson Financial is that Celgene is a buy. The share price reached a 52-week high of $72.91 on Friday. The Motley Fool recognized Celgene for its sustainable competitive advantage over its rivals, and Jim Cramer also likes Celgene.

MOST NOTEWORTHY: Getty Images (GYI), Jackson Hewitt (JTX), Electronic Data (EDS), RC2 Corp (RCRC) and Chipotle Mexican Grill (CMG) were today's noteworthy downgrades:

• Deutsche Bank cut Getty Images (NYSE: GYI) to Sell from Hold citing deterioration in its core business. Gabelli downgraded Getty Images to Hold from Buy after the company lowered guidance to reflect the changing industry dynamics.

• Goldman cut Jackson Hewitt (NYSE: JTX) to Sell from Neutral citing near-term risks that include the renegotiation of the HSBC (HBC)/RAL contract, the DoJ/IRS investigation, and decreasing performance in tax.

• Jefferies downgraded Electronic Data Systems (NYSE: EDS) to Hold from Buy to reflect the company's slowing cash flow improvement.

• Wedbush downgraded RC2 Corp (NASDAQ: RCRC) to Buy from Strong Buy on the lower sales forecast for 2007. Soleil cut shares to Hold from Gradually Accumulate to reflect uncertainty over the Thomas recall and increased competition.

• Chipotle Mexican Grill (NYSE: CMG) was downgraded to Market Perform from Outperform based on valuation...

OTHER DOWNGRADES:

• Lazard downgraded Kyphon (NASDAQ: KYPH) to Hold from Buy.

• SMH Capital cut Aventine Renewable Energy (NYSE: AVR) to Sell from Neutral.

• Credit Suisse downgraded AutoDesk (NASDAQ: ADSK) to Neutral from Buy.

• UBS cut SABMiller (OTC SBMRY) to Reduce from Neutral.

• CIBC downgraded Marvell Tech (NASDAQ: MRVL) to Sector Performer from Outperformer.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).

The federal inquiry into Jackson-Hewitt Tax Services (NYSE: JTX) has expanded amid allegations that more than 125 of the company's offices knowingly helped tens of thousands of its customers file fraudulent tax returns to obtain $70 million in refunds. Last week, the company disclosed that it was being investigated by the IRS.

The company's stock has not tanked on news, partly because the announcement is just an expansion of the current investigation. For now, the accusations of wrongdoing are limited to the company's franchisees, but that could of course change.

Even if Jackson-Hewitt itself isn't charged, this raises serious questions about the company's internal controls, training, and oversight of its franchisees. The company said in a filing that it "intends to complete the internal review promptly and to implement a variety of enhancements in the areas of compliance and monitoring for the 2008 filings season."

This raises many questions.

Will the scandals hurt the company's growth? Will potential franchisees want to associate themselves with a company that is the subject of such a scandal?

The shares haven't tumbled that much on the news of the investigation and I think the market may be underestimating the effect this will have on the company's growth.

MOST NOTEWORTHY: Tenet Healthcare Corp (THC), Furniture Brands International, Inc (FBN), Sepracor Inc (SEPR), ValueClick, Inc (VCLK) and Altria Group, Inc (MO) were today's noteworthy downgrades:

• Bear Stearns downgraded shares of Tenet Healthcare (NYSE: THC) to Underperform from Peer Peform citing difficulties in California and weak margins.

• Stifel downgraded Furniture Brands (NYSE: FBN) to Sell from Hold citing concerns regarding continued weakness in the housing industry.

• Summer Street downgraded Sepracor (NASDAQ: SEPR) to Sell from Neutral after the HCPCS website indicated Xopenex and Albuterol will have the same code as of July 1.The firm believes this eliminates the optimistic scenarios that Sepracor can garner a minimal-or-no-reimbursement cut.

• RBC downgraded shares of ValueClick (NASDAQ: VCLK) to Underperform from Sector Perform as the firm believes the FTC letter poses a risk to earnings and that the company is unlikely to be acquired.

• Matrix downgraded Altria Group (NYSE: MO) to Buy from Strong Buy to reflect decreasing cigarette sales and increasing valuation...

OTHER DOWNGRADES:

• American Technology cut Autodesk, Inc (NASDAQ: ADSK) to Neutral from Buy.

• Matrix downgraded Fluor Corp (NYSE: FLR) to Sell from Buy.

• Jackson Hewitt Tax Service (NYSE: JTX) was cut to Market Perform from Outperform at William Blair.

• Baird sent Alliance Data Systems Corp (NYSE: ADS) to Neutral from Outperform.

• Roth Capital downgraded shares of Sonic Solutions (NASDAQ: SNIC) to Hold from Buy.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).

MOST NOTEWORTHY: Weyerhaeuser Co (WY), Jackson Hewitt Tax Service Inc (JTX), Hewlett-Packard Co (HPQ) and Coldwater Creek Inc (CWTR) were some of today's more noteworthy upgrades:

• UBS upgraded shares of Weyerhaeuser Co (NYSE: WY) to Neutral from Reduce citing the stock's recent weakness.

• Morgan Stanley upgraded shares of Jackson Hewitt Tax Service (NYSE: JTX) to Equal Weight from Underweight on valuation as the firm believes yesterday's sell-off was overdone.

• Hewlett-Packard Co (NYSE: HPQ) was upgraded to buy from Neutral at American Technology on valuation.

• Coldwater Creek (NASDAQ: CWTR) was upgraded to Buy from Neutral at Bank of America based on the company's favorable risk/reward.

OTHER UPGRADES:

• BB&T upgraded shares of Pacer International, Inc (NASDAQ: PACR) to Buy from Hold citing the company's operational changes and new $100M shares' repurchase.

• Goldman upgraded Spherion Corp (NYSE: SFN) to Neutral from Sell.

• SkyWest, Inc (NASDAQ: SKYW) was upgraded to Neutral from Underweight at Prudential.

• Bear Stearns upgraded shares of Sonic Corp (NASDAQ: SONC) to Outperform from Peer Perform on expectations of an acceleration in partner drive-in same store sales and system wide unit expansion.

• Citigroup upgraded Corinthian Colleges, Inc (NASDAQ: COCO) to Buy from Hold after a company visit as the firm believes expectations are finally low enough and recent initiatives are taking hold. Further, Citigroup believes takeover speculation will limit downside as their analysis suggests an LBO could work.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).

MOST NOTEWORTHY: RadioShack Corp (RSH), Juniper Networks, Inc (JNPR), H.B. Fuller Co (FUL) and Sepracor Inc (SEPR) were today's more notable downgrades:

• Morgan Stanley downgraded RadioShack (NYSE: RSH) to Underweight from Equal-Weight on concerns over the company's wireless fundamentals and top-line growth.

• Juniper Networks (NASDAQ: JNPR) was downgraded to Strong Sell from Buy at Matrix USA. The firm sees downside to the intrinsic value calculation of $12 given the company's deteriorating fundamentals.

• H.B. Fuller Co (NYSE: FUL) was cut to Sell from Hold at Gabelli following a meeting with management to reflect the recent management exists and the broker's expectation for a challenging first-half of 2007.

• Sepracor (NASDAQ: SEPR) was cut to Underperform from Market Perform at Friedman Billings, as the firm believes generic availability of Ambien may be a bigger challenge to Seprecor's Lunesta than investors expect.

OTHER DOWNGRADES:

• Jackson Hewitt Tax Service Inc (NYSE: JTX) was cut to Underweight from Market Weight at Thomas Wiesel as they believe the potential near-term competitive trends coupled with potential issues with rising financial product contribution will weigh on valuation.

• Bear Stearns cut Cerner Corp (NASDAQ: CERN) to Peer Perform from Outperform.

• Matrix USA downgraded InfoSpace, Inc (NASDAQ: INSP) to Hold from Buy on valuation.

• Prudential cut Unilever plc (NYSE: UL) to Neutral from Overweight.

• Breen Murray downgraded Century Casinos, Inc (NASDAQ: CNTY) to Hold from Buy.

• Cowen downgraded PeopleSupport, Inc (NASDAQ: PSPT) to Neutral from Outperform based on near-term visibility concerns.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).

Franchising has been the saving grace for many small business owners who would like to launch their own businesses while getting help on key start-up decisions like location, equipment, inventories, sales and marketing, and operational logistics.

In fact, many franchises are extremely affordable (all things considered) ways to go into business for yourself, from home-based franchises (like Jani-King), to location-based franchises (like Jackson Hewitt or McDonald's). (Check out Entrepreneur Magazine's 2007 list of the top 100 franchises if you're in the market for a new business.)

If not, a far easier and lower cost way to get involved with some of these top franchises is to buy the stocks. I looked at Entrepreneur's list with an eye toward figuring out which ones would have also been good investments for your portfolio.

Today at its investor meeting H&R Block's (NYSE: HRB) CEO, Mark Ernst, said that he believes the company can generate profit growth rates of 10% to 20% over the next few years.

Part of this growth may come from acquisitions. In fact, the company's CFO indicated that there may be an acquisition of another major tax prep company.

Of course, that got Wall Street buzzing. Who could it be? One possibility is the second biggest tax prep company, Jackson Hewitt (NYSE: JTX). And, yes, the stock price got a boost – increasing 3.66% to $36.53.

But, if this happens, Jackson Hewitt would probably want to take cash. After all, its stock price increased nearly 30% over the past year, while H&R Block's stock fell about 9%.

Tom Taulli is the author of various books, including the Complete M&A Handbook and the EDGAR-Online Guide to Decoding Financial Statements.