Encouraging large enterprises to participate and contribute in open source projects is the next frontier for open source communities. There are lots of examples of companies being happy users of open source technology but sadly very few examples of companies contributing back to those same open source communities. This is why I was happy to see the White House, that uses Drupal for their whitehouse.gov site is now contributing back to Drupal. Imagine if every US Government department starting contributing back to the open source projects they use? It is great to see the White House showing leadership in open source participation!