EBay

A new study from New York securities firm NYPPEX estimates Facebook’s enterprise value is now much higher than Yahoo and EBay, at $41.2 billion and significantly higher than other fast growing startups like LinkedIn, Twitter, Zynga, and Groupon. Facebook’s value has shot up 56 percent since the middle of 2010. None of the startups mentioned above have gone public but many let their employees sell shares in private markets as an incentive for their valued staff members. The private markets let investors buy a piece of a company early on but it is difficult to determine what the price of a share should be. ...