Here's the Wall Street Journal story on her performance and the buzz it generated.
How much buzz? 306,100 tweets per minute during her performance, according to the Hollywood Reporter.
Did Cyrus help or hurt her image? It depends who you ask. Cyrus herself seemed pleased with the furor, based on her own tweets afterwards.
Smilers! My VMA performance had 306.000 tweets per minute. That's more than the blackout or Superbowl! #fact.Miley Cyrus on Twitter.
— Miley Ray Cyrus (@MileyCyrus) August 26, 2013