A swimming pool, converted into a museum is hosting an excellent exhibit on Bloomsbury, "Conversation anglaise, le groupe de Bloomsbury" (November 20, 2009-February 27, 2010). You'll need to go to Roubaix (near Lille) to see it, but it will be worth your trip.
Links:
"Bloomsbury Triangles"
Lunettes Rouges (
lemonde.fr).