Exactly....the uprising in Tunisia resulting mainly from very high unemployment and lack of opportunity for the young. It resonated with the majority and the dictator saw the writing on the wall and left.
It seems pretty apparent that the uprising in Egypt was encouraged by events in Tunisia. It too had some success in that the dictator stepped down....internal pressure. The Libyans; seeing the successes in neighboring countries decided that they could do the same....but their dictator shows not willingness to do anything except kill everybody who stands in the way of his authority.
Tunisia, Egypt, Libya Bahrain, Yemen, Syria etc have many differences, but they have one thing in common; a complete lack of participation by the populations in political process, freedom of expression, and brutal reprisals against those that challenge their respective leaders. It's a fundamental part of human nature to want those things.....and people can not be ruled by fear indefinitely. They will rebel...it's just a matter of timing.