Well at least once a week! I discovered that if you use the speed test at the very bottom of the page in the enclosed link, it can read your router (internal) IP using Java. I don't particularly want to disable Java. I've posted the question on the Zone Alarm forum if there is someway it can hide that IP. Anyway, thought you all might be interested in this info.
http://www.auditmypc.com/internet-speed-test.asp
The Java applet runs on the client side (on your machine) hence it can get the IP from you.
It might not be a very big deal, but if you use a router maybe you prefer only they know about your router IP and not your IP of computer behind the router.
You can disable Java, that is a good idea. Almost no sites use Java anyways. Or you can perhaps disable Java so it dont run without ask you first, or to disable Java for all sites except the one you want it enabled for.