Over 20 years ago, the San Jose Mercury-News offered exactly such a service. Called Newshound, it let you set up to face sets of keywords (in the basic $5/mont

Over 20 years ago, the San Jose Mercury-News offered exactly such a service. Called Newshound, it let you set up to face sets of keywords (in the basic $5/month subscription), and it would email you the plain text of every article that matched the criteria, whether generated within the publisher network or from wire services.