Jetspeed has support for the following features:

• Supports a Portlet API which makes content addition "plugable".
• Supports remote XML content feeds via Open Content Syndication.
• Custom default home page configuration
• Database user authentication
• In-memory cache for quick page rendering
• Rich Site Summary support for syndicated content
• Integration with Cocoon so that you can develop with the newest XML/XSL technology.
• XML based configuration
• Web Application development infrastructure
• Local caching of remote content
• Synchronization with Avantgo
• Local buffering of remote content including XML and remote images.
• Fully portable across all platforms that support JDK 1.1 and Servlet 2.0