Aggregation Application Block..
This App Blocks that Microsoft are releasing as part of the
Patterns and Practices items are a welcome addition to my toolbox. The Aggregation Block that was just released probably cut off 2 days of development time for me. Check it out
here.
From the site:
Summary: This page provides an overview of the Aggregation Application Block, which is a Microsoft® .NET Framework class library that allows you to manage and coalesce information from various service providers and other systems and transform the information for presentation.