Free alternative to Microsoft Office

There are several free alternatives to Office. Depending on your needs, some work just as well as Microsoft's productivity suite. 
LibreOffice is also compatible with the most popular document formats, including Office documents.
Why pay big bucks for Microsoft Office when there is something similar for FREE?
Enjoy!
http://download.cnet.com/LibreOffice/3000-18483_4-75337651.html