24. The software of claim 23 , wherein providing the user device access to a verification service comprises providing a link to an age verification service landing page.
24. The software of claim 23 , wherein providing the user device access to a verification service comprises providing a link to an age verification service landing page. 31. The software of claim 24 , wherein identifying filtered content items based on the query and the filtering term comprises: generating a revised query based on the filtering term; initiating a search of an information corpus for content items that are responsive to the revised query; and identifying the content items that are responsive to the revised query as the filtered content items.