1. Dust in Spiral Galaxies HST and ISO Results. http://www.astr.ua.edu/keel/research/dust.html
2. Galaxies Many selected links to websites dedicated to galaxies. http://www.galacticsurf.com/galaxieGB.htm
3. Galaxies NASA Windows to the Universe. Includes illustrations and introductory information about a variety of galaxies. http://www.windows.ucar.edu/cgi-bin/tour.cgi?link=/the_universe/Galaxy.html&sw=false&sn=1&d=/the_universe&edu=high&br=graphic&back=/pluto/pluto.html&cd=false&fr=f&tour=
4. High Redshift Supernova Search Project at Lawrence Berkeley National Lab to search for supernovas in very remote galaxies. This provides an accurate means of measuring the distances to remote galaxies and thereby determining the age of the universe. http://www-supernova.lbl.gov/
5. UMass High Energy Astrophysics Group Research group primarily interested in high energy activities in galaxies, particularly the interplay between massive stars and the interstellar medium. http://www.astro.umass.edu/ast_page/xray/heag.html