
Interactive timeline: Anonymous - Interactive - Al Jazeera English: "- Sent using Google Toolbar"
Nicely made Anonymous time line. Starts with Anonymous' fight against the Church of Scientology. I guess this is more or less correct since we could say that Anonymous entry into the hacktivism scene dates from then, even though they did a lot of pranks before.
As for the Church of Scientology, it's largely a fail, mostly because, like for the church's critics, they couldn't avoid the trap of falling themselves in the very travers they were decrying against the CoS.
As for the Arab Spring, I don't know, because it's the first time I read about this possible link, and I am not sure I will have the time or the interest to read it all - but anyway, certainly worth mentionning.