The Palomar-Quest sky survey:
http://palquest.org

The Big Picture:
http://bigpicture.caltech.edu

U.S. Virtual Observatory:
http://www.us-vo.org

Foundational document:
http://www.us-vo.org/sdt/

Public outreach:
http://virtualobservatory.org

e-Science:
http://escience.caltech.edu