Seems cardholders aren't the only ones getting paid to discover. Discover Financial Services is best known for issuing Discover-brand credit cards, which are used by more than 25 million members. The company's cards, which include several levels of business and consumer accounts, repay cardholders a percentage of the purchase price each time they use their cards. Discover also licenses Diners Club credit cards, which are accepted in more than 185 countries. But there's more to this business than just plastic. The company also offers direct banking services, makes student and personal loans, and runs the PULSE Network ATM system. Morgan Stanley spun off Discover Financial Services in 2007.