We are inviting full papers describing original contributions for a special issue of Computer Communications on network support for GRID computing. Details of this special issue can be found at http://www.comp.lancs.ac.uk/computing/users/laurent/GRID_CfP.html We apologize if you receive multiple copies of this call. Please feel free to distribute a copy of this call to those who might be interested. David Hutchison Laurent Mathy Olivier Bonaventure Guest editors