Google used to have this feature (the ability to specify sites not to show in their search results), but removed it for some reason. I cannot remember if they g

Google used to have this feature (the ability to specify sites not to show in their search results), but removed it for some reason. I cannot remember if they gave a reason why. They did provide a replacement as a browser plugin (mentioned close-by in this thread), and I am sure that there are other similar plugins available.