"We're told that all of the original Summize team is now gone from Twitter," TechCrunch writes -- not to mention to recent exit of Biz Stone, "the firing of four key
product guys, and the departure of a number of early Twitter employees," it adds. As Chief Scientist, Chowdhury led several significant data projects at Twitter, and is credited with playing a key
role in the implementation of Twitter Search and Recommendations.
Chowdhury is also a co-founder of the Alta Vista School in San Francisco, and at one point was the chief architect of search at AOL, Techcrunch notes.