The open availability and wide accessibility of scientific data sets is becoming the norm for 21st century science. Numerous repositories of scientific data enable researchers to discover, understand, and build upon previous work at greater scales than was previously possible. Policy pressures, technical developments, and social norms are all likewise pushing scientific communities in the direction of wider data availability. Many challenges, however, still impede the use and understanding of scientific data. This session invites contributions that discuss new or ongoing work to increase the utility of scientific data collections online. Topics of interest include, but are not limited to, data discovery systems, metadata standards and processes, data policy initiatives, data preservation approaches, data stewardship user stories, and data repository developments.