Steve Ballmer said during Windows Vista and Office 2007 kick off : "Windows Vista and the 2007 Microsoft Office system also provide the core platform that will enable businesses to take advantage of the benefits of Internet-based software services. These products incorporate key XML and Web services technologies that will help companies tap into online services and select the mix of on-premise and hosted applications to deliver the right balance of control, convenience, cost-effectiveness, and security while helping increase productivity. " The keywords here are control, convenience, cost-effectiveness and security. You will notice that each of these are targeted towards a different audience, but directed against the common enemy - Web Based Office Productivity Apps * Lets break them down: Control : Most Chat, Online Storage, Networking etc sites are blocked in may companies, who nevertheless acknowledge that these things enhance productivity. Why the do they block them? Th