In a previous post we shared how to Add Categories & Tags to WordPress Pages. But what good is that if WordPress doesn’t include pages into the category and tag archive pages. Depending on your specific implementation, not very much.
This post used to include a code snippet to accomplish this but instead it would be easiest to just install our Ninja Pages, Categories, and Tags plugin. It gives you the ability to add categories and tags to pages and add those pages to your archives. It also gives you a few other options as well.