This page has an mjpeg embedded in it:

Click here to view the image by itself.

Update: This page was created to demo a bug in Chrome 20/21 where an mpjeg stream viewed directly did not animate (chrome bug 135337). The issue has been fixed in versions >= 22. I'll leave this page up for anyone else trying to test mjpeg functionality.

Souce code for this mjpeg server can be found at https://github.com/psanford/mjpeg-demo-server.

A node version of this server can be found at https://github.com/psanford/node-mjpeg-test-server. I ported it to go when I moved off of heroku.