A few of the best debate wrap-up articles I've found are the following:
- New York Times fact checking: Refuting some of the more outlandish claims and misquotes by each candidate.
- New York Times live debate blogging: Summarizing the highlights.
- Politico's roundup: Another good summary of the highlights.
The most powerful lines that stuck in my memory were both by Senator Obama:
“You said we knew where the weapons of mass destruction were. You were wrong,” Obama said about the Iraq war. “You said that we were going to be greeted as liberators. You were wrong. You said that there was no history of violence between Shia and Sunni. And you were wrong. If the question is who is best-equipped as the next president to make good decisions about how we use our military, how we make sure that we are prepared and ready for the next conflict, then I think we can take a look at our judgment.”
"I've got a bracelet, too."
In addition, as quoted in Senator McCain campaign's YouTube video that came out just after the debate last night, Senator Obama several times indicated that he agreed with Senator McCain. Why would Senator McCain see this as a negative trait? It shows bipartisanship, a spirit of cooperation, and rational thought.
The quote from Senator McCain that stayed with me was his repetition of "Obama doesn't understand." Unfortunately for Senator McCain, Senator Obama's performance in the debate proved otherwise. They both understand the situation, they just disagree on the best resolution.
I agree with the snap polls- this debate was a win for Senator Obama.
 McCain on offense; Obama plays it cool