Owner: Comcast-Spectacor

Wealth: Cable television

Though this company isn't officially everyone's favorite cable company Comcast, Comcast does own a 63% stake in this company, which started in 1996. Ed Snider created the company Spectacor in the early 70's to own both the Flyers and their arena, the Spectrum. The combined company bought the 76ers in late 1996.

Owner: James Dolan

Wealth: Cable television

Sad that I didn't even have to look this one up (thank you Isiah and Anucha Brown Sanders). Dolan is chairman of the board of Cablevision, one of the largest cable providers in the New York tri-state area. He built the company by acquiring many smaller cable companies in the region and forming the larger Cablevision.

Owner: Richard DeVos

Wealth: Infomericals

Richard DeVos founded Amway, which is described as a "multi-level marketing company", which translated out of business-speak, means they are a big company that helps little people push their products and then takes a big cut of the profits. Think of the types of things being sold during the 30 minute infomercial - probably an Amway product. Its most well known product is the Nutrilite dietary supplements. Despite these beginnings, DeVos is ranked as the 73rd wealthiest person in the US, with a total net worth of $3.5B. Guess a lot of people are watching those infomercials!

Owner: Maple Leaf Sports & Entertainment

Wealth: Sports ownership

The MLS&E company owns the Raptors, Toronto Maple Leafs, as well as the Air Canada Centre. The company was founded in 1927 as a way for owner Conn Smythe to protect his hockey team's assets. Ironically, the largest shareholder in the company today (which has a valuation of $1.6B), is the Ontario Teachers' Pension Plan. That's right, retired teachers collectively own the Raptors. You see, Vince Carter was just appeasing the retired owners of the club with his loafing!

Owner: Jerry Reinsdorf

Wealth: Real estate tax loophole

Reinsdorf is one of the most well-known owners in the NBA, mostly owing to him breaking up the MJ-led Bulls. He also owns the Chicago White Sox. He made his money by taking advantage of a loophole in the IRS tax code for real estate in 1978 (which was amended in 1986). For those tax attorneys out there, Reinsdorf was allowed to sell his real estate holdings to a holding company, lease it from this fake company, but take the tax deductions for depreciation for himself. In essence, he made money and never had to pay taxes on it.

Owner: Robert Johnson

Wealth: Television

Bob Johnson founded BET (Black Entertainment Television) in 1979 and was the first black billionaire in the US in 2001. Even today, he is one of only 2 black billionaires in the US (Oprah being the other). Unfortunately, Robert Johnson has the unofficial record for most expensive divorce in history, having forgotten to get a prenup to his wife Sheila Johnson, and losing about $900M to his ex-wife (who's now the 2nd richest woman in America behind Oprah).

Interesting Note: Michael Jordan is a minority owner.

Interesting Note: Nelly (of EI fame) is a minority owner.

Owner: Herbert and Melvin Simon

Wealth: Real estate

Herbert and Melvin formed a real estate investment trust called Simon Property in 1960. Most people don't know of Simon Properties by name, but if you've been to any mall in the US, chances are that Simon Properties owns it. The company owns 250 malls in the US, including the famous Mall of America in Minneapolis.

Owner: Wycliffe "Wyc" Grousbeck

Wealth: Venture Capital

Wyc graduated with an MBA from Stanford and started a venture capital fund called Highland Capital Partners. For those of you not in the know as far as Wall Street firms goes, venture capital funds invest in startup companies, before they get big, in hopes that the company they invest in explodes. Some of his company's success stories are AskJeeves, CheckFree bill paying services, eToys, and MapQuest. Wyc bought the Celtics in 2002 for $360M. All that from a few web sites!