Links

Gravitational Lensing

CASTLeS
CERES
CLASS
HST Gravitational Lens Creator
HST Medium Deep Survey GL Candidates
Lens an astrophysicist
Liege Group: Didactical Experiments
MACHO Project
Optical Gravitational Lensing Project

Surveys

2DF QSO Redshift Survey
2MASS
3CRR Atlas
APM Catalogue
Digitized Sky Survey
Las Campanas Redshift Survey
NED
NVSS(UK mirror)
Sloan Digital Sky Survey

Telescopes

ASTRON/NFRA
Australia Telescope Compact Array
Canada-France-Hawaii Telescope
Chandra
Deep Space Network
Gemini Telescopes
HST archive of observed targets
Isaac Newton Group of telescopes (inc. WHT)
James Clerk Maxwell Telescope
JBO VLBI
JIVE
W. M. Keck Telescope
MERLIN
Multiple Mirror Telescope
Nordic Optical Telescope
ROSAT Guest Observer Facility
Scheduling information
Space Telescope Science Institute
United Kingdom Infrared Telescope
UK Schmidt Telescope
VLA
VLBA
VSA
VSOP
Westerbork Synthesis Radio Telescope
William Herschel Telescope
XMM UK

Institutes and Observatories

Anglo-Australian Observatory (UK mirror)
Caltech
ESO
Instituto de Astrofisica Canarias
Jodrell Bank Observatory (JBO)
Joint Astronomy Centre
Mount Stromlo & Siding Spring Observatories
MPI für Astrophysik
MPI für Radioastronomie
Mullard Space Science Laboratory
NASA
NRAO
Onsala Space Observatory
QMW Astronomy Unit
Royal Observatory Edinburgh
UMRAO database
US Naval Observatory

Journals and Science Media

A&A
ADS (UK mirror)
AJ
ApJ
ARA&A
astro-ph (UK mirror)
Astronomical Society of the Pacific
MNRAS
Nature
New Scientist

Miscellaneous

Astronomy Picture of the Day
Google
Jodrell Bank Observatory local user pages
NASA Astronomical Data Centre (star catalogues)