Below you will find a list of useful scientific links (we do not take any responsibility for the material encountered on external links).

The Astrophysics Data System (ADS) - http://adswww.harvard.edu/
Astro-ph - http://uk.arxiv.org/archive/astro-ph
NED (NASA/IPAC Extragalactic Database) - http://nedwww.ipac.caltech.edu/
SIMBAD Astronomical Database - http://simbad.u-strasbg.fr/Simbad
The ROSAT X-Ray All-Sky Survey - http://www.xray.mpe.mpg.de/cgi-bin/rosat/rosat-survey
The 2dF Galaxy Redshift Survey - http://www.mso.anu.edu.au/2dFGRS/
The 2dF QSO Redshift Survey (2QZ) - http://www.2dfquasar.org/
The Two Micron All Sky Survey at IPAC - http://www.ipac.caltech.edu/2mass/
The Digitized Sky Survey (DSS) - http://stdatu.stsci.edu/dss/
International Astronomy Meetings List - http://cadcwww.dao.nrc.ca/meetings/
The MERLIN Data Archive - http://www.merlin.ac.uk/archive/
National Space Science Data Center - http://nssdc.gsfc.nasa.gov/
STScI Digitised Sky Surveys DSS - http://ledas-www.star.le.ac.uk/DSSimage
International Astronomical Union - http://www.iau.org/
Starlink Project - http://star-www.rl.ac.uk/
Image Reduction and Analysis Facility (IRAF) - http://www.starlink.ac.uk/iraf/web/
High Energy Astrophysics Science Archive Research Center - http://heasarc.gsfc.nasa.gov/
SkyView http://skyview.gsfc.nasa.gov/
Sloan Digital Sky Survey - http://www.sdss.org/
Royal Astronomical Society (RAS) - http://www.ras.org.uk/