Windows 7 Taskbar Extensibility
As Bruce mentions in his post, the Windows 7 taskbar is one of the key must-implement features in Windows 7. Thankfully, it's straight forward and relatively easy to implement these features in your applications. This video walks you through the features of the Windows 7 Taskbar describes the exensibility points for your application. Note there is no code in this video, for implementation details check out the links in Bruce's post.