Many of you have seen this graph of Google Trends of popular AJAX frameworks (Dojo, jQuery, YUI).
The graph seems to make it clear that interest in Dojo collapsed in the second quarter of 2008, falling by 80%; jQuery picked up the slack and ultimately grew to more than triple the size of Dojo.
Why? What happened in Q2 2008 that demolished interest in Dojo?
(Note that I'm not really interested in a comparison of Dojo vs. jQuery; even if you can explain why one is better than the other, it's hard to see why that suddenly became clear to the world in April 2008.)