In connection with the defence of two PhD theses ( by Ulrich Fahrenberg and Rafael Wisniewski) in the area, we host a Workshop on Topology and Concurrency. September 27-30 at Department of Mathematical Sciences Aalborg University, Denmark. www.math.aau.dk The speakers are David E. Hurtubise, Penn State, USA, Marcel Bökstedt, Aarhus, Denmark, Glynn Winskel, Cambridge, UK, Kathryn Hess, EPFL Lausanne, Switzerland, Eric Goubault, CEA Paris, France, Martin Raussen and Lisbeth Fajstrup Aalborg, Denmark For further information, see http://www.math.aau.dk/aktivitet/TopoWork.htm