You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract Is YouTube, Supposed King of Online Video, Doomed to AOL's Fate? Aggregator on Fast Track to Irrelevance as Media Bigs, Marketers Realize They Can Serve Content on Their Own By Simon Dumenco, Published on June 25, 2007 1 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.