‘The Oprah Effect' – How Oprah's Endorsement Helps Companies

It's no secret that Oprah's endorsement has helped everything from her book club picks to President Barack Obama himself – and according to CNBC, the daytime mogul has also raised the profits of numerous companies over the years.

According to the site, Oprah's talk show is the highest rated program of its kind in television history, with an estimated 44 million U.S. viewers a week – a demographic that has contributed to the success of products ranging from clothing to cake.

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Spanx – in 2000, Oprah chose the shape wear as one of her "favorite things." The company went on to make $350 million in retail sales over the next decade.

Garrett's Popcorn – One of Oprah's "Favorite Things" twice, the company saw sales increase by 100% in the month of December after she mentioned them in 2002.

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Kindle – Amazon's electronic reading device sold out during the 2008 holiday season after Oprah introduced the device and gave viewers a discount code.

We Take The Cake – A bakery on the verge of bankruptcy in 2004, Oprah's mention of the company helped them to sales of over $1 million a year.

Carol's Daughter – Once a flea market merchant, Lisa Price has turned the Carol's Daughter line of fragrances into a multi-million dollar business after an appearance on "Oprah."

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LAFCO – The luxury handmade soap has cleaned up with customers since it appeared on Oprah's show.

The star features about 20 products each year on her "Favorite Things" show, but she's also helped people go on to fame and fortune, including proteges such as Dr. Phil, Rachael Ray and Dr. Oz, who have an assortment of successful shows, books and even magazines.

And for some, it didn't take an Oprah endorsement to find success – just her name. Robyn Okrant, a blogger, has earned a healthy following on Livingoprah.com, where she writes about following the star's advice for a year. And media coach Susan Harrow wrote a book about using Oprah as a springboard – "The Ultimate Guide To Getting Booked On Oprah."

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