{"id":"S2003011474","label":"Viral marketing","description":"Here are entered works on an Internet marketing and advertising technique that propagates a marketing message by inducing Web sites or users to pass it on to other sites or users.","source_url":"https://id.loc.gov/authorities/subjects/sh2003011474","normalized_label":"viral marketing","broader":["http://id.loc.gov/authorities/subjects/sh95005028"],"aliases":["Contagious marketing","Viral advertising"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2003011474","provider":"lcsh","revision":"aab042734422c14c","taxonomy_revision":"f050b5d4780b1289","title":"Viral marketing","url":"/topics/S2003011474","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5188362559048541762","address_version":"morton4x16-v1","coordinates":[0,477,36382,18432],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}