Here is a non-exhaustive list of other relevant organisations with an interest in social history that you may find useful.
The Cathedral Adult Learning Programme includes topics of general historical interest from time to time, often in events run with other bodies, such as St Albans Museums.
Elstree Screen Heritage was founded in 2006 to record, preserve and share the unique film and television heritage of the area.
Herts Memories enables members of the public to share and enjoy photos, memories and historical research on Hertfordshire.
LPSS is solely devoted to the promotion of all aspects of historical demography in a local context. It publishes the internationally renowned journal Local Population Studies.
The Out of Sight, Out of Mind? project in St Albans is a record of the former mental hospitals in the area including Hill End, Napsbury, Cell Barnes, Harperbury, Leavesden and Shenley.
Sopwell Memories was formed by the Sopwell Residents Association to record stories relating to the history of Sopwell, which lies on the southern edge of St Albans.