Follow Your World allowed users to register points of interest on Google Maps and receive email updates whenever the imagery was updated. Launched January 27, 2011; shut down September 30, 2019 — it lived 8 years. One of 37 Google products killed in 2019. https://maps.googleblog.com/2011/01/sign-up-for-imagery-update-alert.html Data: Killed by Google (killedbygoogle.com, MIT).