>I have a cable connection to the Internet. Does anybody know how to run Web apps. from my computer over the Internet?
>Thanks Mark

The first thing to do is read you usage agreement with your cable company. @Home expressly forbids this, other companies may have the same agreement.

If you find that you can run applications this way, you'll need a static IP address. Once there, just point your browser to that address and you're off and running.