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December 2009
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March 2010

January 2010

After growing exponentially from 10 to 20 million users in a couple of months, and doubling again to 40 million in just three months, it's got almost six months for Twitter to reach 60 millions users worldwide. This slow down can be explained by many factors, most of them intertwined.... Read more →


The increase in usage of Skype to make phone calls (not just Skype-to-Skype, but from Skype to land lines and cell phones) has been impressive, and I can think of some reasons for this phenomenon: - Pricing: Skype competes with great per-minute fees everywhere. The local competition does not come... Read more →