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 Time Spent on Facebook, Gaming Surges Social Media Usage on PCs Grows 43% in a Year as E-mail, Instant Messaging, Portals Decline By Jack Neff, Published on August 02, 2010 12 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.