Howtoons is the web version of a Sunday comic feature that shows kids how to build simple exploratory projects. Each Howtoon project is a printable pdf file that can be freely copied and distributed. A cool extra for a science class. The site also includes video clips of kids creating the projects.
Net Frog is an online site that takes the user through the process of dissecting a frog. It provides audio, visual, and interactive hands on experience for each step of the dissection process. Additional information, links, and resouce pages are available on the site to allow an idividual user to learn at thier own pace, while at the same time, provides a structured format in which a teacher could incorporate an entire classroom into the laboraory experience. Although some of the pictures and videos are small, I would still highly recommend this site for use in a high school science class.
Tux, of Math Command is an open-source D&P application from the developers of TuxPaint. The game is still in the Alpha phase and not yet available for OSX. (I'm using the OS 9 version). It's a fairly good, Asteroids-like game that gives students many opportunities to practice math facts. I'm really excited about the continued development of open-source applications for education. In development is an application called TuxWriter.
A collection of old stories and songs from the "golden age of children's records" is available at Kiddie Records Weekly. I think primary teachers might be able to make use of this unusual resource. Some of us actually remember these recordings.
Logo, a simple computing language, is still going strong. You might remember it from your elementary school years. I am always surprised at how much satisfaction students get from making the turtle do their bidding. LogoPark is the first online Logo applet that I've seen. Kids can create simple designs right in their browser. LogoPark is one of the activities at Math Playground.