  PubMed is a freely accessible system for searching the biomedical literature,
with approximately 2.5 million users worldwide on an average workday. We have
recently developed PubMed Labs (www.pubmed.gov/labs), an experimental platform
for users to test new features/tools and provide feedback, which enables us to
make more informed decisions about potential changes to improve the search
quality and overall usability of PubMed. In doing so, we hope to better meet
our user needs in an era of information overload. Another novel aspect of
PubMed Labs lies in its mobile-first and responsive layout, which offers better
support for accessing PubMed on the increasingly popular use of mobile and
small-screen devices. Currently, PubMed Labs only includes a core subset of
PubMed functionalities, e.g. search, facets. We encourage users to test PubMed
Labs and share their experience with us, based on which we expect to
continuously improve PubMed Labs with more advanced features and better user
experience.
