ProxySG Software - SGOS
Symantec WebFilter (formerly Blue Coat WebFilter - BCWF)
The ProxySG is able to control and monitor access to web 2.0 applications, when new web applications and or operations show up how does the ProxySG receive these updates.
Blue Coat automatically updates new applications and operations through WebPulse, so that policies are automatically updated and enforced.
See Web Application Policy Engine
for more details.