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 Fledgling Ad Servers Start to Take on the Three Major Players Gannett Partners With Lesser-Known AdTech After Watching Leaders Get Snapped Up by New Owners By Abbey Klaassen, Published on July 14, 2008 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. Register Now Already a member? Log in.