The original Personal Blocklist is dead.

Reddit user Buliam made a fork that works well for Google Search (just tried it myself on Chrome, x64, Win7 SP1), but doesn't seem to work for Google Images results.

However if you want something that also works for Google Images (to filter the google-bombing shitty Getty results), you'll need to head over to the Google Hit Hider by Domain script by Jefferson Scher.

It's a script that works with the Violentmonkey extension (it's an open source version of the popular Tampermonkey extension - that is now proprietary and closed-source, so should be avoided).

Update: that script is absolutely fantastic, I highly recommend it! :D

With it I can easily:

• block entire domain OR only some of the subdomains

• export/import lists at will

• truncate the WWW with a single push of a button if I misclicked when adding a new domain (the script lets you choose there)

• directly add new domains from the Google Search AND Google Images results: in Google Search it's next to the URL ; while in Google Images you first click on the picture, then next to the normal GI's buttons there's a new GHHbD button (name of the script).

• I can choose to Block or Permaban domains: Block will still display the filtered results in a short line (for Google Search), and add a transparency layer (for Google Images) ; Permaban will completely filter out the results (for Google Search) and place a grey rectangle over the thumbnails (for Google Images).

• Switch an entry from the Block list to the Permaban list with a single click

Screenshots below:

• Google Search results (istock is only Blocked here, clicking on a filtered result line shows the full Google preview and the GHHbD buttons)

• Google Images results (all moved to the Block list)

• Google Images results (all moved to the Permaban list)