The whole world knows how Twitter and Facebook gave power to the people and overthrew dictators.
Events in Tunisia and Egypt did more to advertise the power of these social networks than multimillion-dollar campaigns.
Still it was a surprise to read recently in the Wall Street Journal that some investment analysts were putting a market valuation of $8 billion on Twitter. In an informal poll on the Journal‘s website, 80% of the readers said Twitter was not worth that much.
