Deep in the bowels of OS X is /private/etc/hosts, and if you'd care to jump through some hoops you can edit it to add URLs, and that will prevent any contact between anything on your Mac and them. (It was mentioned in my linked thread.)
The new Great Equalizer is the SEND button.
In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire
