Cosmology: Alan Guth\'s thoughts (Introduction)
Cosmology: Two new views of space
Quantum vacuum re-explored. Is reverse gravity dark energy?-http://www.physorg.com/news/2012-01-repulsive-gravity-alternative-dark-energy_1.html-http://www.physorg.com/news/2012-01-repulsive-gravity-alternative-dark-energy.html