Just learned that OpenOffice.org has a site especially for educators and their students.
The mission of the OpenOffice Education Project:
"Its purpose his to help teachers as well as students or anybody involved in education to enter the OpenOffice.org project and find a place where to contribute or to find information. Another aim is to be a central point for tools and initiatives around OpenOffice.org the product and the sources that can be shared by our international community and where students of any level can find a place to easily participate." For more information about this productivity tool, or to contribute, see the Education Project wiki.