Personal Blocklist was a Chrome Web Extension by Google that allowed users to block certain websites from appearing in Google search results. Launched February 1, 2011; shut down August 1, 2019 — it lived 8 years. One of 37 Google products killed in 2019. https://searchengineland.com/google-finally-discontinues-the-blocked-sites-feature-152885 Data: Killed by Google (killedbygoogle.com, MIT).