There are many astronomical data sources available on the Internet. This list is not comprehensive but we'd like it to be! Email us [1] if you have additions.
The Anglo-Australian Telescope [4]
Links:
[1] mailto:michael@slackerastronomy.org
[2] http://test.aavso.org/aavso-international-database
[3] http://archive.princeton.edu/%7Easas/
[4] http://apm5.ast.cam.ac.uk/arc-bin/wdb/aat_database/observation_log/make
[5] http://hla.stsci.edu/
[6] http://skydot.lanl.gov/nsvs/nsvs.php
[7] http://ogledb.astrouw.edu.pl/%7Eogle/photdb/
[8] http://www.sdss.org/
[9] http://www.aavso.org/vsx/
[10] http://vizier.u-strasbg.fr/cgi-bin/VizieR
[11] http://www.aavso.org/category/tags/data-mining
[12] http://www.aavso.org/category/tags/data-mining-section