Bruce Kyle of Microsoft and Stuart Celarier of CheckFree explore the new languages features in C#. It's a whirlwind tour of the important language features since C# 1. Stuart describes the feature and why it is useful. But doesn't get into best practices nor suggested usages. Just the facts about the feature.
Whirlwinds are bite-sized webcasts, each is shorter than 15 minutes. You can start anywhere in the series to learn about the parts you're most interested in.
Part 6 is about anonymous types and extension methods. Extension methods are static methods that can be invoked using instance method syntax. Anonymous types are used without you having to name the type.
These features are part of C# 3 in .NET 3.5.
Duration: 8:30
Other Whirlwind episodes: What's new in C# 2
Whirlwind 1 - Generics
Whirlwind 2 - Iterators
Whirlwind 3 - Partial types, Anonymous methods
Whirlwind 4 - Accessors, Static Classes, Nullable Types
Other Whirlwind episodes: What's new in C# 3
Whirlwind 5 - Automatically Implemented Properties, Type Inference, Initializer
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More information
For more information about this topic, see Stuart's Visual Stuart blog.
For more information of interest to software developers, see the US ISV blog