Had you ever imagined widespread implementation of WordPress and other content management frameworks like Drupal? Today, they hold major chunk of the content management marketplace and there are many more innovative products that are going to be emerging players very soon. So, if you contribute to open source, consider Calipso, a simple NodeJS content management system based on Express, Connect & Mongoose. It is built along similar themes to Drupal and WordPress, that is designed to be fast, flexible and simple.
Calipso is calling open source developers to further enhance its features. The current version is good to be used for fulfillment of most content management requirements.