All links of NTP

WebSenseWebSense
Mutating Web proxy (RabbIT)Mutating Web proxy (RabbIT)
MuffinMuffin
WebFilterWebFilter
Application-Specific Proxy Servers as HTTP Stream TransducersApplication-Specific Proxy Servers as HTTP Stream Transducers
X-Stop Internet Access Management SolutionsX-Stop Internet Access Management Solutions
Configuring Your Mac to Work With Filter Proxy SettingsConfiguring Your Mac to Work With Filter Proxy Settings
FilterProxyFilterProxy
Proxomitron, TheProxomitron, The
GFI SoftwareGFI Software
PrivoxyPrivoxy
Using a Hosts File To Make The Internet Not Suck (as much)Using a Hosts File To Make The Internet Not Suck (as much)
SquidGuardSquidGuard
BrowseControlBrowseControl
Norton Internet SecurityNorton Internet Security

NTP related site: