Provides integration with clker.com online clipart to openoffice.org. Simply, the cliparts you choose and save to your clipart basket, will appear in the extension window inside openoffice.org. Better, we have almost all cliparts in ODG format, SVG and PNG so you don't have to worry about compatibility issues.

The Creative Commons Licensing extension provides the ability to select and embed a Creative Commons license in Writer, Calc and Impress documents. In addition to embedding the license in the document metadata it provides a visible notice in your document.

This extension convert recursivly Microsoft Publisher document in OOo format (impress)

...but this not the perfect converter : I don't parse the pub file : I just use Publisher COM component.
So Publisher has to be installed !
Anyway, I think it can be usefull for a lot of people "captive" of Publisher.

Create with Photo Album, using just four clicks, a slideshow from a folder of pictures with random fades automatically applied between slides, and the slideshow set to loop continuously.

This extension provide an easy way to crop images in Draw or Impress.
Have a look at http://www.alicvb.com for more details.

Soon Come
Alter a documents (creation, edited, print) data with a dialogue. Set the meta information of an OOo document, like editor, total editing time and version cycle or set your own or to "new document" values.
Localized English, German or Dutch user interface (see screenshots).
Online Documentation in English or German

Get the power of LaTeX into OpenOffice.org !

OOoLatex is a set marcos designed to provide latex support into OpenOffice. The extension contains two mains modules allowing to insert equations as emf or png images, the latex code is saved into the image attribute allowing reedition while simpler equations are expanded into symbol characters and then inserted as regular text.

The O3Spaces Workplace is a web2.0 OpenOffice.org collaboration and document management extension. The O3Spaces Workplace is available as a free to use Community Edition, offering integrated OpenOffice.org collaboration and document features for teams and workgroups.
O3Spaces Workplace lets you create, publish, version and search ODF documents from your OpenOffice.org suite.

-More information is available at http://www.o3spaces.com
-Download direct at http://community.o3spaces.com/downloads

MultiDiff is a tool which enables users to simply and simultaneously issue OpenOffice.org documents in several formats. It is possible to send those documents by mail or save them in a directory, so that other users can access them.

Compatibility

- OpenOffice.org : 2.2 and above (Writer, Calc and Impress)
- OS : Linux and Windows (XP, 2000, 98)
- mails Clients : on Linux - Evolution, Sylpheed ; on Windows - Outlook (Express et 97), Thunderbird, Eudora.

Java ME application (mobile) and a Java SE Add-On (desktop) that controls a slide presentation in OOo (OpenOffice.org) Impress. The user can switch slides (next and previous) while a timer (used for presentation controlling) is displayed on the screen. It uses Bluetooth for Computer-Device communication with Project Marge and UNO API for OOo integration.