A list of assorted astronomical and non-astronomical links that may or may not all work!
Publications and Journals
ADS Abstract Service
astro-ph preprint server - new
Astrophysical Journal
Annual Review of Astronomy and Astrophysics
ApJ Instructions to Authors
MNRAS Manuscript Central
Telescopes and Observatories
Fred Lawrence Whipple Observatory
SAO Telescope Date Center
Chandra X-Ray Observatory
Hubble Space Telescope
Spitzer Space Telescope
Societies
American Astronomical Society
Royal Astronomical Society
Newsletters
Massive Star newsletter
Magellanic Cloud newsletter
AGB newsletter
Cool Stars newsletter
Star Formation newsletter
Astronomical Databases and resources
SIMBAD
Vizier
NASA Infrared Science Archive
Thomas Rauch's model stellar atmosphere
Lionel Siess's Stellar Isochrones
Leo Girardi's TRILEGAL Stellar Populations Code
Data reduction, programming packages and tools
ACIS Extract Data Reduction Package
The Perl Bookshelf
UCL astro-wiki
Outreach and Images
Astronomy Picture of the Day
Hayden Planetarium Visualization Archive
Introduction to the Hubble Space Telescope
The Constellations and their Stars
Non-astronomical Links
Wikipedia
Google Maps
The IPHAS Survey
The INT Photometric H-Alpha Survey
INT WFS Archive
IPHAS Object Finder
IPHAS Catalogue Search
Observing Tools
Equatorial to Galactic Coordinates Converter
Staralt
HectoSpec Observers Manual
Chandra Proposal Planning Toolkit
Jobs and Meetings
International Astronomy Meetings List
Astrophysics Job Rumour Mill
AAS Job Register