Arab Spring gets boost/Al Qaeda goes bust

What does OBL's death mean in the big picture? I can't improve on the opinion expressed by Fareed Zakaria.

[T]he truth is this is a huge, devastating blow to al Qaeda, which had already been crippled by the Arab Spring. It is not an exaggeration to say that this is the end of al Qaeda in any meaningful sense of the word. . .

History has turned an important page.