Microsoft is not a company which we identify as a leader in Saas Services. However recently Microsoft has come out with a slew of services which are hosted online both for personal and business use.
Microsoft online services are particularly interstesting as they are extensive and represent tremendous savings for both small and large companies versus buying licenses and running them in house. If you are interested in Microsoft Online Services, you can get more information here:
http://www.microsoft.com/online/business-productivity.mspx
Some reviews can be found here:
http://www.techcrunch.com/2009/03/02/microsoft-expands-online-business-services-trial-to-19-more-countries-signs-glaxosmithkline/
http://www.pcworld.com/article/160462/microsoft_extends_hosted_services_to_europe_asia.html
http://news.cnet.com/8301-1001_3-10185073-92.html
