Came accross this event series via Chris Aldrich's microblog.

Here's Chris' original post

Every Monday, I sit down with a cup of coffee and learn something interesting about history through old manuscripts. Join our friends Dot Porter (@leoba) and the Schoenberg Institute for Manuscript Studies (@sims_mss) at Coffee with a Codex.

Basically it's a virtual meeting where experts go over manuscripts on a variety of topics. I'll probably check out next week's event.