Last year we released a major new feature to Syndetics Unbound—Mark and Boost Electronic Resources—to help libraries adapt to full and partial shutdowns of their physical collections during COVID-19. One year later, and Mark and Boost remains a powerful tool, letting libraries highlight and promote their electronic resources. The feature marks the library’s electronic resources and “boosts,” or promotes them within Syndetics Unbound’s discovery enrichments, such as You May Also Like, Tags, Book Profile, and Reading Levels.