We we released a new community article onto the Visual Basic Developer Center by one of our MVPs, Jeff Certain, called Scaling ADO.NET DataTables. In this article Jeff shows shows us how to query and aggregate data using the built in DataTable methods as well as LINQ to DataSets. He compares the performance on indexed and non indexed DataTables in a variety of scenarios. See for yourself what Jeff recommends on large sets of data.
-Beth Massi, Visual Studio Community