Adweek: Tumblr Went Toe to Toe With Twitter During VMAs… “Tumblr was nearly as busy as Twitter during MTV’s Video Music Awards on Sunday when it came to the sheer number of content contributors, per Union Metrics, a company that offers analytics for both platforms. The San Francisco tech firm says 1.1 million Tumblr users posted content with VMA-related keywords yesterday, while 1.3 million folks on Twitter did the same. Those figures may surprise marketers who view Twitter as the undisputed, dominant, social-media companion for TV watchers.” Thanks Miley…