OpenOffice is a great word processor / spreadsheet / slide show program which is becoming a good replacement for Microsoft Office. It's being funded by Sun Microsystems, but is community-supported Free Software. If you like, you can make a difference in its development by acting as a QA liason, or simply by helping your organization save money by embracing OpenOffice.

Here are a few pages I've written about OpenOffice:

And here are a few external links of interest: