A grid middleware with minimal user and resource requirements
Publish/Subscribe, Request/Reply Messaging API for Java.
Fine-grained authorizations and single sign-on for SSH remote commands
OpenDDS is open source publish/subscribe middleware
Middleware for distributed applications
XML Data Stream Broker/Replicator
TuCSoN tuple-based coordination middleware
Library implementing the GridRPC and GridRPC DM OGF stantards.