Microsoft Patterns & Practices has released an updated set of downloads for the Web Client Software Factory Guidance Bundles and Application Blocks that support Visual Studio 2008 and the .NET 2.0 and .NET 3.5 Frameworks.
Thanks to Alvin Ashcraft for mentioning the links.
Web Client Composite Library
This library provides reusable application blocks for creating composite responsive Web clients.
Web Client Contextual AutoComplete Application Block
This application block provides guidance on how to provide a list of suggested values to the end user of your application during data input.
Web Client Model View Presenter Application Block
This application block provides guidance on how to create testable ASP.NET user interfaces.
Web Client Responsive Composite Reference Implementation
Web Client Responsive Composite Reference Implementation.
Web Client Modularity Application Block
This application block provides guidance on how to create modular composite user interfaces.
Web Client Composite Automation
This guidance package provides Guidance automation for creating composite Web clients.
Web Client Validation Application Block
This application block provides guidance on how to improve responsiveness for UI validation.
Web Client Search Application Block
This application block provides guidance on how to improve UI search patterns.
Hope this helps.
Dave