From the folks at GPUG comes a New! GPUG Summit 2013 Tampa Online Community this one is for talking about and collaborating for the upcoming GPUG Summit.
New! GPUG Summit 2013 Tampa Online Community – GPUG Events & News – Microsoft Dynamics GP – Microsoft Dynamics Community
Archived post from 2013. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.