planets.sun.com is currently in beta, but it is alive and working. It's a configurable feed aggregator that is available to Sun employees to use to create specialized "planets" of feeds.

I just created one for High Performance Computing at planets.sun.com/HPC.  It collects the feeds from blogs.sun.com that are marked with category HPC. It also subscribes to a set of Sun user forums on forums.sun.com, and the news feed from the HPC portal, hpc.sun.com

I don't know if this is at all useful. It could be. But it is clear that the amount of information related to high performance computing on the web is overwhelming.

Let me know if you find this useful. I will be expanding it to include feeds outside sun.com and with a wider set of categories.

But remember: Aggregate, don't aggravate.