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 Tests App Install Ads In Hopes of Jump Starting Mobile Business Portal Reportedly Working on an App Discovery Service By Tim Peterson, Published on March 03, 2014 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.