Specifically, upon successful verification, I want to 1) Add the user to a specific role based on the state that they are select when registering themselves. 2) I want to push there contact information to a constant contact list 3) I want to share specific information with them based on the state that they used in their registration via email.

Doing things when a user is unregistered/deleted are also of an interest.

My current "simple" solution is to modify the DotNetNuke Library and I added custom code. Not ideal and not centralized. I would think that it would be logical to have an extension mechanism to daisy chain (via events) into common user management operations, i.e. registration, login, subscription changes, etc.

Another option that I may have is to create a scheduled task to do this syncing, but it requires me to recreate what I think the changes are that I am interested in.