...
- Web Distributed Authoring and Versioning (WebDAV)
- Universal Description, Discovery and Integration (UDDI)
- Java API for XML Registries (JAXR)
- Content Repository API for Java (JCR)
- Web Services Dynamic Discovery (WS-Discovery)
- Web Services Eventing (WS-Eventing)
- Lightweight Directory Access Protocol (LDAP)
- State Chart XML (SCXML)
- WS-I Standards
- Web Services Human Task (WS-HumanTask)
- OpenSocial APIs
...