TheDaoBums supports the idea of a healthy number of Daoist discussion sites; we don't aim to be a monopoly. Here's a couple of threads on the board that list additional resources beyond TDBs.
This second thread contains an offer (from way back) by Sean to email him... I doubt that he is still receiving/responding to such emails, but the thread as a whole is a valuable list of resources.
This thread is maintained as locked and pinned.