Kathryn Q. Seelye at the New York Times: Live Blogging from the Democratic Debate

Rick Klein at ABC: Live Blogging from the Democratic Debate

There are probably more, but this is the top of the Google, and I have company. Should give you a flavor.

Video later, if I can get past this: ABC Restricts Debate Clips to 30 Seconds; Cable Channels May Cite ‘Fair Use’

Later: NYT transcript: Democratic Debate in Philadelphia

Much later: Watch Full Debate Here at ABC's debate page.