An anonymous reader writes "There's plenty of sites out there that we'd all like our children, roommates, or family members to avoid. Forget buying parental control software though. You can block specific sites from being accessed by adding them to your
/etc/hosts file in Mac OS X and Linux, here's easy instructions to follow:
http://osxdaily.com/2007/03/19/block-access-to-sp e cified-sites-by-modifying-etchosts/"