Do you have a filter for the Internet

[tongyun]

I have found that having a filter on the Internet at home helps to keep inappropriate sites out of my house, especially since I have a near teen who surfs the Internet. The one that I use is K9. What do you use?

[princee18]

I have not used any filter till now but i think its a neccessary thing, specially if you have kids at home. I have heard about k9 but dont know how successful it is.