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 Eight Questions Marketers Should Ask Before Starting a Location-based Effort From the new report, "What Marketers Need to Know About Location-based Services" By Kathryn Koegel, Published on March 08, 2011 6 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.