Just discovered a new list for your reading pleasure. If you are interested in Information Design, then this should be added to your collection. The Information Design Cafe list comes out of the Netherlands and the discussion topics are of high quality. Semiotics, Pattern Language, History of Information Design and other heady stuff are some of the recently discussed topics. Makes a good supplement to these other IA/Design/UI topical lists: asis&t SIGIA-L , CHI-WEB, AIGA Advance for Design.