As you know ,you can adjust Openoffice.org to your needs by adding more functionality with the help of extensions. In this article is listed five useful extensions for Openoffice.org with installation guide.

1- Sun Weblog Publisher : The Sun Weblog Publisher allows you to quickly create, edit and publish weblog entries on many popular Blog servers.
2- OpenOffice.org2GoogleDocs - export & import to Google Docs, Zoho, WebDAV