Well now - we suspected (
nay, suggested) Google would do this (eventually, once all other more commercially friendly avenues were exhausted) -
Googleblog:
You’ve probably had the experience where you’ve clicked a result and it wasn’t quite what you were looking for. Many times you’ll head right back to Google. Perhaps the result just wasn’t quite right, but sometimes you may dislike the site in general, whether it’s offensive, pornographic or of generally low quality. For times like these, you’ll start seeing a new option to block particular domains from your future search results. Now when you click a result and then return to Google, you’ll find a new link next to “Cached” that reads “Block all example.com results.”
Took their time, but jolly good show. Wonder if we will see more Do No Evil behaviour now that EU and Washington are taking a closer look.
Capturing kids' Social Security numbers is a bit OTT, chaps....