Side Effects Software
- Creators of Prisms and Houdini, procedural 3D animation and special effects tools for film, broadcast, entertainment and visualization production.
- http://www.sidefx.com/

Using Houdinis Particle System
- A quick example of how to use particles to create a field of grass complete with a gentle wind blown effect in Houdini. The file has two components: the source geometry and the particle system.
- http://www.digitalproducer.com/pages/using_houdinis_particle_system.htm

Tutorial Abstract: Houdini Basic Surface and Solid Meshing
- Algor's keystroke-specific, step-by-step tutorials are distributed electronically in a format that customers can easily print out.
- http://www.algor.com/news_pub/adw/1998/julsep98/tutor_04.asp?sQuery=Houdini

El Kabong
- Discover the 10 basic tricks, plus 3 more that combine the tricks for the CHOPs Editor in Houdini.
- http://www.elkabong.com/

Houdini Animation Software Forums
- This is an open forum for users of Houdini animation software.
- http://www.odforce.net/forum

od[force]
- Serving the Houdini community with scripts, shaders, tutorials, plugins and codes. A forum is available for help and links to other Houdini related material.
- http://www.odforce.net/

Expression2houdini
- Two tutorials one will show how to set up a simple control panel using expressions, the other faking global illumination in Houdini with Vmantra.
- http://www.lewkiw.com/