Mark Harden’s Artchive: Art, art and more art. A great resource for studying the sublime sickness http://www.artchive.com/ftp_site.htm
Digital Photography Review: An incredible resource for reviews, comparisons and lists of specs for hundreds of models of digital cameras. [A must before you purchase your next piece of equipment] http://www.dpreview.com/
Golden Number: Links to just about everything you ever wanted to know about the golden mean, phi, and the Fibonacci Sequence. Don’t attempt art without it. http://www.goldennumber.net/
1x.com: An international facebook type of affair for photographers…very, very nice work. One of my favorites is their critique section; an invaluable tool for any artist. Sign up is free. Upload a picture and post it for critique. You get unvarnished advice from some of the best in the world. [The best part…you have to write meaningful critiques of three other photos that have been posted before you’re allowed to post one of your own] http://www.1x.com
Online Speech Bank: I usually like to listen to speeches instead of music...probably because I'm full of shit and I appreciate anyone who is an artist in the medium of bullshit. http://www.americanrhetoric.com/speechbank.htm
The Internet Archive: Practically everything that is in the public domain (video, audio, images, etc.) http://archive.org/index.php
Mad Scientist Library: FILL YOUR BRAIN!! We have plenty of ignorant people in this world and we don’t need one more. Hundreds of links to various science education sites. http://www.madsci.org/libs/
National Institute of Standards and Technology’s Fundamental Physical Constants: Just in case you’re building a nuclear magnetic resonance spectrometer at home and you need to know the gyromagnetic ratio of a shielded proton. http://physics.nist.gov/cuu/Constants/index.html