Google is killing Tags , an advertising product for local businesses which allowed them to enhance their Google Maps or Places listings. For a flat $25 monthly fee, local merchants could make their their natural listings stand out a bit with a yellow tag and a few words pointing to offers, photos, menus, or links back to their website. Tags were introduced with Google Places , the search engines local listings effort, about a year ago after being tested for a few months. Google sent an email today to merchants using the service notifying them that it will be shut down in two weeks on April 29. One tipster who sent us a copy of the email writes: