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 Yahoo's Tweaks to 18-Year Old Brand are Underwhelming, Industry Execs Say A Series of Font Changes Not Likely to Improve Portal's Business By Tim Peterson, Published on August 09, 2013 9 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.