Just published: Producing Islamic Knowledge: Transmission and Dissemination in Western Europe, ed. Martin van Bruinessen and Stefano Allievi (Abingdon: Routledge, 2010).
This book covers a variety of ways in which "Islamic knowledge" is being produced and spread in Europe, and has one article (by me) on the role of Traditionalism, "Guénonian Traditionalism and European Islam" (pp. 169-87). This article is remarkable mostly for the length of time it took to get into print: it was originally a paper given in 2003, before the publication of Against the Modern World, much of which it summarizes. It does, however, give some new details, and it places Traditionalism in a wider European Islamic context.