Internet Activity Surveyor
Intenet Activity Surveyor is allows you to monitor the Internet and Local Area Network (LAN) activities. It moniting web surfing, send/receive mails, chat conversations and file transfer. It gathers information passing through your Ethernet card, decodes and save the analyzed data. ... Totally stealth and no need to install client software on the remote machine.
http://www.inforazor.com/down/NetSurveyor.exe - 3Mb - Download - Screenshot

Chat Surveyor
Chat Surveyor is a handy network utility for capturing and observing chat conversations on all computers in a network. It can record conversations automatically in real time and export all intercepted messages to HTML files for later processing and analyzing. ... It's easy to use, and it will monitor all conversations in your LAN without the use of client software installed remotely.
http://www.inforazor.com/down/ChatSurveyor.exe - 3Mb - Download

Webcam Surveyor
Webcam Surveyor is a utility that allows you to easy control your web cams. You worry for your home or office? Webcam Survayer will help to track safety and will inform you if something happen. Webcam Survayer? s motion detection feature to alert you immediately when activity is detected. ... Webcam Survayer support E-mail and FTP alerts or you can simply capture sequence of images with an interval of time of a second to 59 hours. ... Also you can capture video/audio with use of modern codecs like MPEG4 or DivX.
http://www.downloadmx.com/files/WebcamSurveyor-setup.exe - 2Mb - Download - Screenshot