From Oracle FAQ
WebCenter Suite is a J2EE-based component of the Fusion Middleware platform and is available as an option for the Oracle Application Server.
WebCenter suite lets developers create an environment that increases worker productivity by combining Web 2.0 services with transactional processes, business intelligence data, communications such as instant messaging and RSS feeds, and structured or unstructured content.
WebCenter also allows users to create blogs, wiki's, online discussion forums, etc.
WebCenter supports the following open standards:
- J2EE (1.4 and above)
- JSR 168
- Web Services for Remote Portlets (WSRP)
- Content repository API for Java (JCR)
- JavaServer Faces (JSF)
- JSR 116
- Oracle Portal, predecessor product.