http://blogs.technet.com/collaboration/archive/2008/01/18/groove-2007-vs-moss-2007-vs-wss-3-0-vs-communicator-2007-part-3.aspxThis posts follows on from Post 2 and is part of a 6 part series of posts. Product Implementation The matrix below aims to succinctly compare how Communicator 2007, Groove 2007, WSS 3.0 and MOSS 2007 are implemented architecturally. Functionality Communicatoren-USCommunityServer 2.1 SP1 (Build: 61025.2)