A few months ago I talked about the Microsoft Sync Framework. One part of that Framework is Sync Services for ADO.NET, which enables synchronization of information between database systems. Steve Lasker has some good information on the Sync Framework and Sync Services. Joe Healy did a presentation on Sync Services at the Orlando SQL Saturday and will be doing updated presentations at South Florida .NET CodeCamp IV and the Tampa SQL Saturday events in February. In the meantime, be sure to check out the slides from his Orlando talk.