“For each piece, the database tells us the work’s title, some brief biographical information about the artist, the year of creation, the medium and dimensions, and how and when MoMA acquired it. These aren’t exactly trade secrets: It’s basically the data printed on the placards posted next to each painting. But, in MoMA’s case, it’s assembled in one place, comprehensive, easy to use, and recent. The museum made the database freely available online last month.”