It's blocked for me at work for just having "porn" in the address. But I checked two days ago and it was up.
I did notice one instance two weeks ago where it redirected to a true p-o-r-n site. I was scared and delighted at the same time...
Anyway, what do you know of the Td5's? RDS seems to have a few. How many ECU's do they have and what are they monitoring?