With the upcoming March 2013 ArcGIS Online update, there are important use changes for ArcGIS Online personal accounts, affecting the way you can use them. You’ve likely received an email concerning these changes already, here’s a reminder of what will happen.
The account name will change from “personal account” to “public account” to reflect the nature of the changes. The ArcGIS Online public account will continue to be available at no cost, and is licensed for personal, noncommercial use only.
If you want to continue to create private groups and items for private collaboration and sharing, you can purchase an ArcGIS Online subscription, which also provides access to other ArcGIS Online features and services.
For answers to any questions or if you need help, e-mail Esri Customer Service at email@example.com or call 1-888-377-4575.