David Liu

Knewton Brings On Ex-AOLer David Liu As COO

<img src="https://beta.techcrunch.com/wp-content/uploads/2009/10/davidliuhed.jpg"> Online learning startup <a href="http://www.knewton.com/">Knewton</a> has a new chief operating officer. <a href="h

AOL Loses Its Chief Lifestreamer, David Liu

<img src="https://beta.techcrunch.com/wp-content/uploads/2009/10/davidliuhed.jpg" width="138" height="190" /> AOL is losing another longtime executive, <a href="http://www.crunchbase.com/person/david