The Burning Question... What is Enterprise 2.0?

Here are some great articles to find out different peoples opinions and projections for its use in the future:

CIO Magazine - An Introduction to Web 2.0 for the Enterprise: Enterprise 2.0 has the potential to provide knowledge and content management in a surprisingly cheap and easy fashion using Web-based tools.
Fred Cavazza has some interesting thoughts...

Here are a couple of old yet key articles on Enterprise 2.0:
BusinessWeek: Web 2.0 has Corporate America Spinning
Information Week - Web 2.0 Meets the Enterprise - Very comprehensive article on how areas of Web 2.0 impact's the Enterprise.
Sandhill: The Birth of Enterprise 2.0 - and Enterprise Vision
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Some nice little E20 slideshows

Scott Gavin calls himself an Enterprise 2.0 Evangelist

He has some very clear and simple slideshows on E20 that are worth checking out...