eBay is one of the biggest companies in Silicon Valley. (Based in San Jose). The eBay group of companies has Skype, PayPal, Rent.com, half.com, Kijiji, ProStores, Shopping.com, StubHub and MicroPlace!

eBay also expands its actions to Europe buying the two famous Denmark companies: DBA.dk and BilBasen.

Last, we heard that in 2007 ebay sent to its users 18.000.000.000 emails. These emails were counted only for transactionals action. The marketing emails are were approximately another $5 billions!