When Mark Zuckerberg announced on the Oprah Winfrey TV show that he was giving a $100m (£62m) grant to disadvantaged schools in Newark, New Jersey, he was accused of turning to charity to improve his image. His image, especially in the light of the Social Network film about his life, was the focus of attention.
There was little discussion of his meagre cash pile and how the donation would be in Facebook shares. Because while the 26-year-old internet tycoon is estimated to be worth $6.9bn, he is a paper billionaire.
The phenomenon that is Facebook is expected to float in 2012. Until that time Newark schools will need to sell the company's shares on the fast-growing market in private shares.
Some estimates put the buying and selling of unlisted privately held shares in the US at the same level as trading in listed shares. In other words, the highly regulated and taxed public markets on the New York Stock Exchange and Nasdaq are being superceded by largely unregulated and lightly taxed private markets.
http://www.guardian.co.uk/business/2010/nov/01/investors-are-the-problem-not-banks