Most of our Enterprise clients are very much involved in moving their organizations towards becoming more "2.0".  The concept of Enterprise 2.0 has in the past represented "technologies and business practices that liberate the workforce from the constraints of legacy communication and productivity tools like email".  Enterprise 2.0 Conference came out with a chart that did a pretty good job of identifying some of the organizational differences between Enterprise 1.0 and Enterprise 2.0.

Enterprise 1.0	Enterprise 2.O
Hierarchy Friction Bureaucracy Inflexibility IT-driven technology / Lack of user control Top down Centralized Teams are in one building / one time zone Silos and boundaries Need to know Information systems are structured and dictated Taxonomies Overly complex Closed/ proprietary standards Scheduled Long time-to-market cycles	Flat Organization Ease of Organization Flow Agility Flexibility User-driven technology Bottom up Distributed Teams are global Fuzzy boundaries, open borders Transparency Information systems are emergent Folksonomies Simple Open On Demand Short time-to-market cycles