The Web Nebulae An overview of nebulae, with color images and links. http://seds.lpl.arizona.edu/billa/twn/top.html

Nebulae Part of a larger site on plasma physics. http://fusedweb.pppl.gov/CPEP/Chart_Pages/5.Plasmas/Nebula.html

Colorado Model of the Local Interstellar Cloud The hydrogen cloud in which the Solar System is immersed. 3D pictures of the cloud, view from any direction, movie, calculate hydrogen column density in any direction. http://casa.colorado.edu/~sredfiel/ColoradoLIC.html

The UCL Centre for Cosmic Chemistry and Physics University College London. Research into the chemistry which occurs throughout the universe in interstellar space. http://www.chem.ucl.ac.uk/cosmicdust/

Interstellar Molecules evolutionary cycle Evolutionary cycle of Interstellar Organic Molecules - Fullerenes, PAHs, Polyyenes, and biomolecules. http://www.shantanurastogi.homestead.com/files/ismol.html

Interstellar Medium Learning pages About ISM from history of observation to current status of understanding. http://www-ssg.sr.unh.edu/tof/Outreach/Interstellar/

Observations of Interstellar Molecules About observation of Interstellar molecules in the ISM and Physical information obtained from them. http://www.chl.chalmers.se/~numa/astrophysics/molecules/molecules.html

Scientific American: The Gas between the Stars Article studies the affects of interstellar atmosphere and its effect on the development of stars. By Ronald J. Reynolds. http://www.sciam.com/article.cfm?articleID=0005CD98-18DA-1C6D-84A9809EC588EF21

N-Body Shop Part of the Department of Astronomy at the University of Washington. Designs and runs software that enables high-performance computing on a variety of astronomy-related problems, including large-scale structure formation and planet formation. http://www-hpcc.astro.washington.edu/