Thank you Jon for your excellent write up. We have reviewed the same set of options you list and have come to pretty much the same conclusions with respect to the items you list and the desired requirements. One thing you didn't list which we do feel is important is not only offering an open source calender server, but also providing a MS Exchange connection as this represents current reality for the corporate market we would like to penetrate. With open source clients this allows for a migration path from current proprietary installations to full open source. We are in the process of setting up and evaluating the OpenGroupware (OGo) suite as that now seems to be the strongest contender and I'm pleased to hear you also give it your nod. We also looked at Horde but drew the conclusion, perhaps hastily, it was too web centric. If you have other input or experiences that would help guide us we would love to get more input from you as it seems like you've had some experience in this area. John -- John Dennis <jdennis@xxxxxxxxxx>