Spector Corporate Network Edition
Spector CNE is the worlds leading employee internet monitoring and recording software designed to provide you with accurate documentation of all PC and Internet activity within your business. With Spector CNE you will significantly reduce, eliminate or prevent the problems associated with Internet and PC abuse.
Spector CNE Internet Traffic Monitoring for Business Networks

Spector Professional
Selected as the Editors' Choice by the experts at PC Magazine, Spector Pro contains seven integrated tools that record: chats, instant messages, emails sent and received, web sites visited, keystrokes typed, programs launched, peer to peer file searching and swapping and more.
Spector Pro Internet Monitoring Software - More Info

eBlaster Remote Internet Traffic Monitoring Software
Use eBlaster when you don't have physical access to the computer you wish to monitor. eBlaster is the most dependable, full-featured remote monitoring software available. eBlaster provides both Instant Notification of Emails, Chats, Instant Messages, Sensitive Words and Phrases. eBlaster also sends detailed hourly email reports of ALL their Internet and computer activity.
eBlaster Remote Monitoring Software