Microsoft, on June 28, 2011, launched Microsoft Office 365, an online MS Office Suite. Although Office 365 was available in a test version for the last year, the official release opens door for the businesses to opt in.
In addition to web-based versions of Microsoft Word, Excel, PowerPoint, and other applications, Office 365 helps bringing them together with SharePoint online collaboration technology, Lync Online cloud communications service, and Exchange e-mail system. The services are available for a monthly subscription.
It might be a bit late entry in the market led by Google after it introduced Google Apps in 2006. Subscription to Google Apps costs $4 or $5 per user per month. For Office 365, the monthly subscription cost ranges from $2 to $27 per user per month.