Melville Society

The society was established in 1945 or 1946. It claims to be among the oldest "international single-author societies". Its primary publication is 'Leviathan: A Journal of Melville Studies', issued three times per year. Wikipedia*

On the C-SPAN Networks:
Melville Society has hosted 1 event in the C-SPAN Video Library; the first program was a 2001 Speech.