Scalable Parallel Systems at IBM Research (Popularity: ): Describes our work on future scalable parallel supercomputer systems; parallel filesystems, message passing vs. remote memory copy mechanisms, resource management, commercial applications, datamining.
National HPCC Software Exchange (NHSE) (Popularity: ): Distributed collection of software, documents, and information of interest to the high performance and parallel computing community.
SuperParallel.com (Popularity: ): Information on supercomputers, parallel computing, multiprocessing, software tools, and the common terminology of supercomputing.
Flash Mob Computing (Popularity: ): Organization that hosts gathering to create ad-hoc temporary assemblies of ordinary PC's running special software to coordinate the PC's into one single supercomputer.
Beowulf Underground (Popularity: ): Archive of the news sources dedicated to the beowulf community.
Beowulf (Popularity: ): Opensource parallel computing from NASA. Site includes an overview of the Beowulf Project, as well as archive, showcase, community, and tools.