The archives of the RDT Development Mailing List are available to everyone.
This list is typically used as the main means of contact and discussion for ongoing work on the project.

The Sourceforge.net RDT Forums are available to everyone.
These forums are typically for users to help each other in using the plugin and as a place to ask for support and help in using the plugin from the developers as well.

The Developer Wiki contains versioning information and general information about the development of RDT.

cawilliams at users.sourceforge.net or mbarchfe at users.sourceforge.net