Scientific American: The Gas between the Stars 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. (Interstellar Medium) http://www.sciam.com/article.cfm?articleID=0005CD98-18DA-1C6D-84A9809EC588EF21
The UCL Centre for Cosmic Chemistry and Physics The UCL Centre for Cosmic Chemistry and Physics: University College London. Research into the chemistry which occurs throughout the universe in interstellar space. (Interstellar Medium) http://www.chem.ucl.ac.uk/cosmicdust/
The Web Nebulae The Web Nebulae: An overview of nebulae, with color images and links. (Interstellar Medium) http://seds.lpl.arizona.edu/billa/twn/top.html
Interstellar Medium Learning pages Interstellar Medium Learning pages: About ISM from history of observation to current status of understanding. (Interstellar Medium) http://www-ssg.sr.unh.edu/tof/Outreach/Interstellar/
Colorado Model of the Local Interstellar Cloud 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. (Interstellar Medium) http://casa.colorado.edu/~sredfiel/ColoradoLIC.html
Nebulae Nebulae: Part of a larger site on plasma physics. (Interstellar Medium) http://fusedweb.pppl.gov/CPEP/Chart_Pages/5.Plasmas/Nebula.html
Observations of Interstellar Molecules Observations of Interstellar Molecules: About observation of Interstellar molecules in the ISM and Physical information obtained from them. (Interstellar Medium) http://www.chl.chalmers.se/~numa/astrophysics/molecules/molecules.html