Net Nanny
Net Nanny was developed in response to concerns about "the worst" of the Internet. It has the capability to monitor the Internet, standard email, IRC chat programs, newsgroups and offline applications in a fully customizable, user friendly environment. Net Nanny gives the parent or administrator complete control over what is being accessed from your PC.

Some features:

• Fully customizable filter lists and activity logs.
• Free list updates.
• Customizable lists.
• Choice of actions if a violation occurs.
• Multiple User Profiles.
• Personal information protection.