Overview articles, including Fortran
January 2009
http://www.clustermonkey.net/content/view/248/33/1/0/
October 2008
http://www.hpcwire.com/features/Compilers_and_More_Programming_GPUs_Today.html
http://gpgpu.org/index.php?s=fortran
Large matrix multiplication:
www.seas.upenn.edu/~cis665/MatrixOperationsontheGPU.ppt
http://graphics.stanford.edu/papers/gpumatrixmult/
NVidia CUDA:
http://www.nvidia.com/object/cuda_programming_tools.html
http://www.nvidia.com/object/GPU_Computing.html
"Support for Fortran, OpenCL, et cetera will follow soon."
Fortran library for NVidia CUDA
http://flagon.wiki.sourceforge.net/
MPI Fortran is in use:
http://forums.nvidia.com/index.php?showtopic=75796
Matlab (mainly for Fast Fourier transform (FFT))
http://developer.nvidia.com/object/matlab_cuda.html