iSurf for Mac

From Vertigo Realmz Software:

Most of us have experienced the annoyance of being disconnected from the Internet by our ISP when we've left our computer just for a moment. iSurf will allow you to take a break with the comfort of knowing that your connection will not be terminated by the time you return to your desk. This application fools your ISP by making your web browser spool through web sites that you have predetermined, instead of sitting idle. iSurf does one thing and does it well! To keep you online. Every minute or so, it loads and goes to another web site in the URL Database you filled in and your ISP believes that you are still working and does not disconnect you for being idle. This a common problem for dialup Internet users.