Since VirtueMart is free and Open Source Software, everyone using it can (and should!) contribute to this project.

You can send your code snippets, hints and anything else helpful to the Homepage of the project: http://virtuemart.net.

There's also an active Forum, where discussion and bug reporting can take place: Forum.

The VirtueMart Developer Portal is an open Development + Hosting Platform for all VirtueMart-related Open Source Projects. It offers the same services as JoomlaCode or Sourceforge, but focusses on VirtueMart Development.