Finally, when applying discount factors, where do you intend to get your discount numbers? For a company with existing debt and equity capital you can calculate WACC and use that. For a startup company you need to figure out a risk_adjusted cost of capital that makes sense. Usually this is not just a risk_free rate which only the largest companies in the world have access to. It's probably something higher.
It has been widely used by the people. Online transactions made the lives of the people easier. At first the internet became an open book to the public. It offers them the best sets of solutions to certain situations and problems. Another product of the internet is the social networking sites. Communicating with your loved ones from a faraway place became more possible with internet. Through the use of internet you can monitor the daily events of their lives. Online dating also became one of the latest effects of internet.