1. A method, comprising operations of: obtaining a resource associated with a podcast from a first website publishing the podcast; storing the resource on a second website that ingests content; adding the resource as a leaf node to a taxonomy generated by the second website, wherein the addition is based at least in part on data associated with the podcast and a similarity measure that is cosine similarity or Jaccard similarity and wherein non-leaf nodes in the taxonomy are categories of content; determining that a user of the second website is qualified as to at least one category that includes the resource as a leaf node, wherein the determination is based at least in part on feedback from the user that includes one or more of a viewing history for the user or a listening history for the user; and serving the resource to the user in a content stream published by the second website, based at least in part on a personalization score associated with the resource, wherein each of the operations are executed by one or more processors.