http://www.mediacurves.com/ found that 61% of Independents believed Obama won the debate, while 38.89% favored McCain as the winner. On each of the eight topics, Obama was a clear winner among Independents, with his highest score coming on the Iran issue - two-thirds of Independents thought he won this question.

-snip-

The topics polled were [Percentages of Independents]*
Financial Recovery Plan: O-60.76%; M-39.24%
Economic Plan: O-55.95%; M-44.05%
Government Spending: O-53.39%; M-46.61%
Lessons Learned From The Iraq War: O-59.52% ; M-40.48%
Sending More Troops To Afghanistan: O-56.86% ; M-43.14%
Threat of Iran: O-61.82%; M-38.18%
US Relationship With Russia: O-66.67%; M-33.33%
Likelihood Of Another 9-11: O-61.11% ; M-38.89%
Who Won The Debate: O-61.11%; M-38.89%

*Percentages for Democrats and Republicans were also given on that page.

-snip-

Additional newspaper reports & online reports about the debate are found in this article: http://www.dailykos.com/storyonly/2008/9/27/5947/86693/1011/612234

Saturday Morning Battleground Reaction: The Debate
by Kula2316
Sat Sep 27, 2008 at 02:13:11 AM PDT