Ashley Madison

Noel Biderman founded a dating website with a twist. In order to enroll, you had to be married. The website which launched in 2001 encourages extra marital affairs and in 2007 was acquired by Avid Life Media. And it’s had enough success to where Biderman has become a millionaire from these men and women that meet through the website to engage in an affair. The website reached more than 30 million users and had a revenue of $115 million in 2014. However, recently their databases were hacked and customer information was released, and now the dating sites future is currently unknown.