Java Actors are becoming a well known way to build distributed, parallel, message-passing based applications. The theory behind actors is very similar to that behing agents, even if an agent more complex than an actor because have a smart part (sometimes called agenthood). However, since new Java actor frameworks are growing, I don't understand why FIPA is not coming into the field defining some kind of standards for such paradigm. It could be the best of both world, but as far as I know there is only a paper that tries to merge both.

The article Java Actors and the missing FIPA has been posted by Luca Ferrari on January 30, 2010