OpenDocument Viewer
- Cross-platform viewer for ODF files. Download, FAQ, and development status.
- http://opendocumentfellowship.org/odfviewer

What Is OpenDocument?
- Sam Hiser looks at ODF, how it implements XML for office documents, the technical and political wranglings in the standard, and the currently available tools and applications.
- http://www.onlamp.com/pub/a/onlamp/2006/07/27/what-is-opendocument.html

ODFReader
- Extension for the Firefox web browser, which adds the capability to view OpenDocument text files.
- https://addons.mozilla.org/firefox/1888/

ODF Add-in for Microsoft Word
- Contains a plug-in which allows import and export of OpenDocument files. Documentation, downloads, and information for contributers.
- http://odf-converter.sourceforge.net/

OASIS OpenDocument Essentials
- Online book with useful information for developers about how to work with the format. Available in HTML and PDF formats, with option to purchase a hard-copy.
- http://books.evc-cit.info/

OASIS News: Members Approve OpenDocument as OASIS Standard
- Official press release covering the approval of ODF v1.0.
- http://www.oasis-open.org/news/oasis_news_05_23_05.php

ISO and IEC Approve OpenDocument OASIS Standard for Data Interoperability of Office Applications
- Press release from ISO concerning the approval of ODF v1.0 as the standard ISO/IEC 26300.
- http://www.iso.org/iso/en/commcentre/pressreleases/2006/Ref1004.html

OpenDocument Format Alliance
- Alliance of companies and organizations seeking to promote and advance the use of ODF and educate policymakers on its benefits. List of members, resources, and press releases.
- http://www.odfalliance.org/

OASIS OpenDocument Technical Committee
- Project for the development of an open, XML-based document format. Contains a list of activities, workgroups, and documents.
- http://www.oasis-open.org/committees/tc_home.php?wg_abbrev=office

Wikipedia: OpenDocument
- Encyclopedia article explaining the format, its features and implications.
- http://en.wikipedia.org/wiki/OpenDocument

OpenDocument Fellowship
- Grass roots group promoting the file format. Details of activities, online resources, and membership information.
- http://opendocumentfellowship.org/