Physics and Astronomy Resources

PhysicsWeb (http://PhysicsWeb.org/) from the Institute of Physics, has links that will help you with just about any major concept in Physics.
Yahoo! Physics (http://dir.yahoo.com/Science/Physics/) has sections of links on everything from amusement park ride physics to x-rays and everything in-between.
Constellations and Their Stars (http://www.astro.wisc.edu/~dolan/constellations/) is a site recommended by Mr. Reeve that not only has information on the constellations, but also has a good list of related links at the bottom of the page.
Dome Online Planetarium's Constellation List (http://einstein.stcloudstate.edu/Dome/constellns/constlist.html) lists major constellations by season and area of the world where they're visible. It also has searches in an online dictionary and the Encyclopedia Mythica so you can get definitions and information about the constellations and how they were named.