Well it was the URL, I think. They just this year started filtering and monitoring. Before that, strangely, they did not want to know (and hopefully did not find out). If the URL is on their list, or has anything salacious, they will filter it, and log that you tried to go there, but it's pretty easy to get around, if one wanted to. I just don't want to have that George Costanza moment, sitting in my bosses office discussing whey I went to this place or that place on the net.