Google offered "alerts" - email notifications when new web content appears relevant to a search string. https://en.wikipedia.org/wiki/Google_Alerts https://en.

Google offered "alerts" - email notifications when new web content appears relevant to a search string. https://en.wikipedia.org/wiki/Google_Alerts https://en.wikipedia.org/wiki/Google_Alerts https://www.google.com/alerts https://www.google.com/alerts