Distant Galaxies and Cosmology Models
Article on possible cosmological models.
www.cosmologymodels.com Details

Galaxy Formation and the Intergalactic Medium
This site is dedicated to summarizing the research of Paul Shapiro's cosmology group. Of interest mainly to specialists.
galileo.as.utexas.edu Details

Good Cosmology Sites
Links to cosmology resources, and a tutorial by a UCLA professor.
www.astro.ucla.edu Details

Great Debates in Astronomy
Following in the footsteps of the famous April 1920 'Great Debate' between Harlow Shapley and Heber Curtis, this series of debates among leaders in the astronomical community highlight major quests in astronomy and astrophysics in an open forum at the turn of the millennium.
antwrp.gsfc.nasa.gov Details

Introduction to Cosmology
These notes form an introduction to cosmology with special emphasis on large scale structure, the cmb anisotropy and inflation. In some places a basic familiarity with particle physics is assumed, but otherwise no special knowledge is needed.
arxiv.org Details

Introduction to Cosmology
A NASA site for the general public featuring a collection of questions and answers on cosmology.
map.gsfc.nasa.gov Details

Introduction to the Cosmic Microwave Background
Basic explanations of key concepts, including the Big Bang, expansion of the universe, and the ripples in the density of the early universe that led to the galaxies and stars we see today.
background.uchicago.edu Details

LAMBDA - Legacy Archive for Microwave Background Data
Cosmic Microwave Background (CMB) archive of science research. CMB data is an important aspect of research in cosmology.
lambda.gsfc.nasa.gov Details

MACHO Project
Primary aim is to test the hypothesis that a significant fraction of the dark matter in the halo of the Milky Way is made up of objects like brown dwarfs or planets: these objects have come to be known as MACHOs, for MAssive Compact Halo Objects.
wwwmacho.mcmaster.ca Details