#7 eBay

The website consumes about 0.9 percent of the overall time spent on internet. It has got 77.7 million desktop users and 39.5 million mobile visitors.

EBay has benefited from the large growth in online retailing. EBay also owns PayPal, an online payment processor.

PayPal processed roughly 700 million payments during fourth quarter of 2012 and had 123 million users. Like most of the top digital properties, the use of eBay on mobile devices has grown rapidly. Between December 2011 and December 2012, mobile engagement based on unique visitors grew 23 percent.

The company has been working to get more people to use its service on tablet devices. CEO John Donahoe has publicly said that people are more likely to purchase items on a Smartphone or tablet than on a PC.

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