Quatloos!

I did a real quick look for it and found this website
http://the9500club.com/#
I see multiple places where they tell you that you can make $500/ referral by selling products through infomercials. If you notice the tabs at the top of the page that state " about us, mail us and prises ( yes that is how its spelled on the site so leave me alone spellcheck)" they all redirect to the main page and dont actually take you anywhere. By reading the page it seems you get this $500 by referring people to advertise or inventor with inventions to advertise on infomercials.
"The 9500 Club is a home based business that allows you to make a guaranteed $500 for each successful referral to Stardust of companies or inventors of products that could be successful if sold on television.

And if the referral signs up for Stardust's Starter TV Package, besides the $500 you can receive a portion of Stardust's profit every time the product sells on TV- which can be an additional thousands of dollars- all for a single successful referral."

The reference to Linda Cobb. The only thing I found on a quick google search was this website.
http://queenofclean.com/
This was a website where she endorses different cleaning products and apparently sells them and creates events around the country to do so. And according to the wiki she once owned a fire restoration company and had articles related to house cleaning.

Dont know where the two mix but maybe shes just a paid spokewoman for their tv thingy ( couldnt really think of what to call it....what do you call it? ).

Sorry. Did find a cross between the two. She is definitely a spokeswoman for them.
http://www.articlepros.com/author.php?Webtastic%20Deals

Scroll down a little bit and youll find it.

I had a little bit of time so I decided to do a little bit more digging into this one. I found no BBB listings for the name 9500 club and when I looked up Stardust under the BBB I did not find a single company that matched this type of business. Not sure what else to look under but I did find it funny that a google search of 9500 club, the top result of the search was this article..lol.

A whois on the website:

Registrant:
King Of The Block

2845 E Tracy Ln Suite 5
Phoenix, Arizona 85032
United States

Registered through: GoDaddy.com, Inc. (http://www.godaddy.com)
Domain Name: THE9500CLUB.COM
Created on: 30-Jul-10
Expires on: 30-Jul-11
Last Updated on: 30-Jul-10

Administrative Contact:
Liddell, Mark jay@siafuworld.com
King Of The Block
2845 E Tracy Ln Suite 5
Phoenix, Arizona 85032
United States
(602) 334-1896

Technical Contact:
Liddell, Mark jay@siafuworld.com
King Of The Block
2845 E Tracy Ln Suite 5
Phoenix, Arizona 85032
United States
(602) 334-1896

I searched Arizona's corporate records. There's a "King Of The Block Concierge Service, LLC." which a Mark Liddell started back in 2004, with a different address. I searched for his name as an agent or manager and pulled up many results. It looked like he moved over the years from Deepdale to Tracy Ln. I was able to figure this out because there are common principals (Brian Hopkins, James Liddell, Jelani Falkner). But anyway, here goes nothing:

• Premier Travel Group, LLC - 2007.
• Zumie Marketing, LLC. - 2008.
• Qwick Funding, LLC. - 2008.
• Arizona Diversified Funding, LLC. - 2006.
• Brahman Realty Investors, LLC. - 2004.
• American Loss Mitigation Agency of Arizona, LLC. - 2005.
• Wall Street Coin Funding, LLC. - 2008.
• Rapid Cash Funding, LLC. - 2008.
• Murray Grey Foundation - 2009. It should be noted that this is listed as a charity.

That looks like it's it for the corps his name is on. I haven't looked any deeper into things.

ETA: Couldn't find 9500 club up there.

So he just basically moves from scam to scam?

That's the impression I got.