We pay for a service through BSafeOnline. I don't have anything blocked at all - it became too much of a nuisance because so many benign things that the kids legitimately needed access to required me to enter the password for them to view. I appreciated the high level of scrutiny, but also wanted the kids to learn to exercise some good judgment.

We currently have it email us a list of websites visited on our various computers each week. If I see anything suspicious I can visit that page and see if there is truly cause for concern. This list is saved on the BSafeOnline server and not just in the browsing history in the computer, which could easily be altered by a user at the computer. BSafe monitors exactly where that computer 'goes' on the web.