Microsoft Office 2010 Puts Word, Excel, and PowerPoint on the Web

«In an expected and inevitable move, Microsoft has announced that the next version of Office will include Web-based versions of Word, Excel, Powerpoint, and OneNote.
(...) Office Web Apps will be full lightweight versions of the products, allowing users to create, edit, save, and share docs on the Web. And, like obvious competitor Google Docs (Google Docs), Office Web Apps will be available for free.»

Office 2010
Mashable