[Haskell-cafe] parallel haskell

I'm interested in doing some research with parallel programming using Haskell (both multi-core on one machine and clusters using multiple machines) but in going through the various resources on the web (looking at GPH and others), it is not clear to me what the current state is as many of the resources/projects have out of date information in them. Any pointers ? What parallel extensions are available in the current version 6.10.3 ? Which parallel extensions support clustered networks ? Where to start ? Thanks