I love picking up buzzwords that translate computer concepts into real world stuff - the pressure the US, Europe but also less "civilized" countries like Turkey and Israel exercised on Hosni Mubarak enabled his gradual departure and opened the way for hopefully free and peacefull elections. However, the revolutions themselves were caused by cultural convergence which was facilitated by social networks that disseminated ideas of freedom and values of liberal democracies like the US.
Magnus Thor Thorfason, Entreprenneuship Professor at HBS points out that both, Social Media and the increased availability of Mobile Devices have played a key role in solving the coordination problem faced by potential protestors (hbswk.hbs.edu/item/6660.html) and help organizers of protests gain momentum by convincing followers that events would be large which makes it more difficult for regimes to retaliate.
A second aspect even, if more profane is the help of coordinating a large crowd and help them to express themselves on a dedicated online forum.
It currently it does not seem to be a matter if, but how far the upheavals in the Arab world will spread. Apart from comprehensible conflicts in China there is also some concern that the movement is swapping over to Albania and even Italy, which puts Europeans and the NATO on alert.
Even, if short term these developments can be alarming, in the long term, Revolution 2.0 will offer the possibility of enhanced representation and bring along more stability and a more competitive business environment. It is certainly not true of all revolutions but in the cases of North Africa it is worth the risk.