I just wanted to say that I use URL snooper to troubleshoot parental control rules. I have the internet filtering at my house set to a family friendly filtering level and occasionally I have issues with downloading something that I need to with parental controls turned on. Most recently, I was trying to download itunes 8 and it was getting blocked by my internet filter. I wasn't apparent what the download url was from the apple web site, so I couldn't determine what domain name I needed to add to my parental control allow list. I was able find this quite easily with URL Snooper.