http://web.scandal.cs.cmu.edu/www/research-groups.html
This is a meta-index of research groups working in the field of supercomputing and parallel computing, with brief descriptions and links to each group's home pages. Some of the groups listed include the Alewife project at MIT CAG, the CC++ project, the Excalibur group at RIACS, the FM (Fortran M) project at ANL and CRPC, the FLASH project at Stanford, the Omega project at the University of Maryland and many more.