Inform the appropriate Wikiproject and Portals that the categories have expert requests they might be able to address.
Guidelines
When replacing an {{expert}} tag in an article make sure to follow these important steps.
Find an appropriate WikiProject or Portal to assign the request to. WikiProjects are preferable over Portals.
Replace {{expert}} with {{expert-subject|Subject name}}. Please be careful of capitalization. This template will assign the article to the associated category, which is case-sensitive. Use the same capitalization as the project or portal.
Open tasks
To-do list for Wikipedia:WikiProject Expert Request Sorting: