The Accelerating Universe
Dragan Huterer (University of Michigan) has published an invited review chapter, "The Accelerating Universe", for a book aimed at general scientists.
The 25-page chapter can be downloaded from arXiv in the 'Cosmology and Extragalactic Astrophysics' section. From the introduction:
"In this article we review the discovery of the accelerating universe using type Ia supernovae. We then outline ways in which dark energy - component that causes the acceleration - is phenomenologically described. We finally describe principal cosmological techniques to measure large-scale properties of dark energy."
nothing more to see. please move along.