This is an absolute MUST SEE. You should visit the new redesigned Office Online site!  http://www.office.microsoft.com

The site has a new information architecture and a very cool Ribbon-like UI. It also provides personalization and tons of how-to topics to help you work with all Office versions. I love their tabs!

Congrats to the Office Online team, the site is absolutely awesome!

https://blogs.msdn.com/inside_office_online/archive/2006/11/01/we-ve-launched.aspx