Journals
NASA/ADS
astro-ph
The Astrophysical Journal
Length calculator for ApJL manuscripts
The Journal of Computational Physics
Annual Reviews of Astronomy and Astrophysics

Computing
MPI documentation
FFTW
FITS documentation
HEALPix documentation
BoxLib/amrlib/HyperCLaw reference
Hypre reference
OpenSSH
GIMP

Professional Organizations
The International Astronomical Union
The American Astronomical Society
The Astronomical Society of the Pacific