It looks like my old friend Steve Gray has started something new for Dynamics Developers. Checkout DynDeveloper.com
[H.T. to Jivtesh for this]
DynDeveloper.com – Your Dynamics GP Questions, <i>Answered</i>
Archived post from 2011. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.