.NET news » WPF 
WPF Step by Step: Getting Started with WPF and Expression Blend
Getting started with your first WPF Application using Microsoft Expression Blend 4.0
WPF: integrating our application with the Windows 7 Taskbar (II)
Let your user interact with your application using the new features of the Windows 7 Taskbar
Validating user input - WPF MVVM
Validating user input in a WPF MVVM Application using the IDataErrorInfo Interface
WPF Simple zoom and drag support in a ScrollViewer
Sample which describes a way of zooming with the mouse wheel or a slider and dragging limited content which is hosted by a ScrollViewer
UI Frontiers: Multi-Touch Manipulation Events in WPF
Multi-touch has progressed from being a futuristic prop of sci-fi films to a mainstream means of user interface. We’ll show you how support for multi-touch in Windows 7 has filtered down and settled into various areas of the .NET Framework.
Attributes-based Validation in a WPF MVVM Application
Description of a method which uses attribute to perform user entry validation in a WPF MVVM application
Hierarchical Menu in WPF
A simple way to create a hierarchical context menu
WPF Image Viewer
Learn how to create a WPF image viewer in Expression Blend
Enable MultiSelect in WPF ListView (2)
Make your ListView support item selection by dragging
Getting started with shader effects in WPF
All you need to know about GPU - accelerated effects in Windows Presentation Foundation