Astronomy

• Databases
  Massive stars in the Local Group and Beyond
  
  ADS -- The NASA Astrophysics Data System
  CDS -- Centre de Donnees astronomiques de Strasbourg
  SIMBAD -- SIMBAD Astronomical Database
  DSS -- ESO Online Digital Sky Survey
  MAST -- Multimission Archive at Space Telescope
  IUEFA -- The IUE Final Archive
  Copernicus -- Data Archive
  Geneva Grids -- Stellar Evolution Models
  Robert L. Kurucz -- Homepage

• Places
  IfA -- Institute for Astronomy/Hawaii
  USM -- Universitäts-Sternwarte München
  
  IoA -- Institute of Astronomy/Cambridge
  CfA -- Harvard-Smithsonian Center for Astrophysics/Cambridge, MA
  ESO -- European Southern Observatory/Garching
  MPA -- Max-Planck-Institut für Astrophysik/Garching
  MPE -- Max-Planck-Institut für extraterrestrische Physik/Garching
  LSW -- Landessternwarte Heidelberg-Königstuhl
  MPIA -- Max-Planck-Institut für Astronomie/Heidelberg
  IAC -- Instituto de Astrofisica de Canarias/La Laguna

• Journals
  A&A -- Astronomy & Astrophysics
  ApJ -- The Astrophysical Journal
  AJ -- The Astronomical Journal
  MNRAS -- Monthly Notices of the Royal Astronomical Society
  PASP -- Publications of the Astronomical Society of the Pacific
  PASJ -- Publications of the Astronomical Society of Japan
  ARAA -- Annual Reviews Astronomy & Astrophysics
  
  astro-ph -- Preprint Server
  
  HSN -- The Hot Star Newsletter
  MCN -- Magellanic Clouds Newsletter

• Computing
  CCP7 -- Collaborative Computational Project
  Starlink
  The IDL Astronomy User's Library
  ESO-MIDAS -- ESO Munich Image Data Analysis System
  IRAF -- Image Reduction and Analysis Facility

• Misc
  International Astronomy Meetings
  ESO User Support -- Service & Tools
  Astronomy Picture of the Day
  AAO Images -- Anglo-Australian Observatory Astronomical Images
  Astrophysics Jobs Rumor Mill

Instruments & Telescopes

• High-resolution Spectroscopy
  FEROS @ ESO 1.52m Telescope
  FOCES @ Calar Alto 2.2m Telescope
  HIRES @ Keck Telescope
  UVES @ VLT

• Medium-resolution Spectroscopy
  ESI @ Keck Telescope
  FLAMES/GIRAFFE @ VLT

• Low-resolution Spectroscopy
  FORS @ VLT

Atomic Physics

• Databases
  GENIE -- A General Internet Search Engine for Atomic Data
  NIST -- Atomic Spectra Database
  TIPTOPbase
  OP -- The Opacity Project
  IP -- The IRON Project
  CHIANTI -- Database for Astrophysical Emission Line Spectroscopy
  Aladdin -- Database
  Kurucz -- Atomic Data Files
  Anil K. Pradhan -- Homepage
  Sultana N. Nahar -- Homepage

• Journals
  Atomic Data and Nuclear Data Tables
  Journal of Physics B
  Optics & Spectroscopy
  Physical Review A
  
  Physics Reports

• Computing
  UK RmaX -- The UK RmaX Network
  DARC -- Dirac Atomic R-matrix Code
  Charlotte Froese Fischer -- Homepage
  AAExcite -- Electron Impact Cross Section Calculations Using The Average Approximation

• Misc
  Weizmann Institute -- Atomic Physics on the Internet Links
  EnvironmentalChemistry.com -- Periodic Table
  IAEA -- International Atomic Energy Agency: Nuclear Data Section/Atomic and Molecular Data Unit