this function allows you to block specific web sites, or restrict access to a list of approved web sites. this is in addition to the web site filter.
click filter, and then select the custom list tab. a window similar to that in figure 31 is displayed.
figure 31 custom list window

you can add or remove web sites from the custom list. for example, if a local radio station runs a contest on its web site that is disrupting normal classroom internet use, a school’s technology coordinator can easily add that site to the forbidden domains list.