References within these pages are only supplied in the event that a figure or data were taken from sources external to the paper version of the review. Links to other sources are also provided for important subjects that lie beyond the scope of these pages. No attempt has been made to reflect an accurate historical development of the subject or provide a list of primary references to the original works. Excellent resources for these purposes include

On-line basic cosmological information can be found at and are used as background sources and links for the introduction.

Intro. | Sound | Baryons | Doppler | Driving | Damping | Project. | ISW | Spectrum | Sensit. | Reion.