Jessica Luna writes: “One of my projects this semester was exploring personalized information retrieval (PIR) methods using collaborative tagging, also known as folksonomies. Folksonomies are used on social media websites like Flickr, Twitter, and Instagram to help users search for topics of their interests. Content creators on platforms like YouTube and Twitch use folksonomies to make their content more searchable and reach a broader audience. This made me wonder, are PIR recommender models the future of next-gen library catalogs?”