Java Tech Journal April 2012 on GPars, parallel collections, asynchronous functions and dataflow concurrency (by Václav Pech)
iX Magazin (german) on multi-core programming with overview (by Johannes Link) and Dataflow concurrency (by Dierk König) explained with GPars examples.
Groovy in Action, 2nd Edition chapter 17 (available in MEAP) covers the basics of GPars.
jaxenter April 2012 on GPars, parallel collections, asynchronous functions and dataflow concurrency (by Václav Pech)
JVM Concurrency and Actors with GPars article at Dr.Dobb's
GPars concurrency and background processing in Grails
Dataflow Speculations in GPars
DeveloperWork: Resolve common concurrency problems with GPars by Alex Miller
Writing batch import scripts with Grails, GSQL and GPars
Flowing With the Data - Václav Pech
Playing with GPars (Actors/Dataflow variables)
Concurrency in Groovy on Javalobby
Testing Asynchronous Code with GPars Dataflows by Hamlet D'Arcy
Grails Podcast episode 97 - Interview with Václav Pech, the GPars author\ – 2009-10-11
JaxEnter short article (german) – 2009-10-09
The Concertant Blog – 2009-10-08 07:15+01:00
Russel Winder's Website – 2009-10-07 09:30+01:00
A Domain-Specific Language to Let Groovy Go Parallel by Gaston Hillar
Actor libraries on JVM comparison by Alex Miller
Event-based actors in Groovy (GR8 Conference)
Event-based actors in Groovy (DZone)