The British Library Labs provides access to the Library's collections by making digital copies available and searchable online. It allows users to tag and curate collections through crowdsourcing. The Labs has had over 250 million page views in 13 months from over 200,000 contributors adding tags. Crowdsourcing helps improve access and knowledge by getting more perspectives on how to describe items, though tags may not always be precise. The goal is to iteratively improve collections and lower barriers to using the Library's resources for work.