Here are three free office suite/productivity applications for creating documents, spreadsheets and presentations.
Locally Installed Applications
Robust functionality similar to Microsoft Office applications.
OpenOffice.org
Web-based Applications
The functionality is not the same in some areas compared to locally installed office applications but you will be able to access your documents from anywhere you have an Internet connection and collaborate with others.
Solution Overview
Office Suite/Productivity Solution Overview
More Information
Research Helper – Free Office Suite Productivity
