Origins of Life
Abiogenesis article in Wikipedia.
The Origin of Life - Abiogenesis, a youtube video produced by Chuck Kopec.
A Simpler Origin for Life, an article by Robert Shapiro in Scientific American.
The Miller-Urey Experiment article in Wikipedia.

RNA and the RNA World
Exploring the New RNA World, an essay by Thomas Cech published on the Nobel Prize website.
RNA Video Clips from the HHMI website that include demonstrations of catalysis and interviews with Thomas Cech.
A World Apart, an HHMI article about RNA World reseearch and the role of RNAs in medicine.
RNA World article in Wikipedia.

The Emergence of Cells During the Origin of Life, an essay by Irene Chen published in Science.
What Came Before DNA? an article published in Discover featuring Jack Szostak and Steven Benner.
The Szostak Lab

The National Astrobiology Institute, established by NASA to study life in the universe.
The SETI Institute, studying the origins, nature and prevalence of life in the universe.
Astrobiology: The Search for Life, a website hosted by the Exploratorium.