Suggested boilerplate text for Sling - the goal is to describe Sling to people who have no idea what it is, in less than a hundred words
Apache Sling is a web framework that uses a JCR content repository, such as Apache Jackrabbit, to store and manage content.
Sling applications use either scripts or Java^TM^ servlets, selected based on simple name conventions, to process HTTP requests in a RESTful way.
The embedded Apache Felix OSGi framework and console provide a dynamic runtime environment, where code and content bundles can be loaded, unloaded and reconfigured at runtime.
As the first web framework dedicated to JCR content repositories, Sling makes it very simple to implement simple applications, while providing an enterprise-level framework for more complex applications.