From Ewen MacAskill at the Guardian:
" ... Presidential hopefuls, television companies and political websites yesterday judged the debate, organized by CNN as well as YouTube, as a success ..." critics "objected to CNN choosing the questions: 39 were selected from almost 3,000 clips sent in ..."
The YT debates Video

and
JD Lasica
Watching the CNN YouTube debate
The Huffington Post
Jack Muse: The Consensus On Last Night's Debate by Jack Muse
BuzzMachine
Jeff Jarvis: Their debate. I'm sorely disappointed ...
Earlier entry on this blog
The Citizen Tube
P.S.:
Media Channel Documentation
Citizen Media Goes Primetime