Office 365 Online Push
The 10 versions of Office 365 range from the $4-per-user-per-month "Exchange Online" hosted email service to the $22-per-user-per-month full-on Office 2010 desktop suite (for five devices). The latter includes online document storage and editing, hosted email and voice processing, PC-to-PC calling, configurable spam and virus protection, instant messaging and unlimited email storage for as many as 50,000 users. All Office 365 plans include community support, virus and spam filtering and work with desktop versions of Office 2007 and 2010 for Windows and Office 2008 and 2011 for Mac OS X. All but the $6 plan for small business include configurable anti-spam filtering, 24/7 phone support, Active Directory synchronization and unlimited updates.