According to a blog post on its site, Meteor, an open-source platform for building web apps, has acquired database startup FathomDB. No financial terms were disclosed. Also, Justin Santa Barbara, the creator of FathomDB, will join Meteor’s team to lead its real-time data efforts. FathomDB was seeded by Y Combinator. Meteor’s backers include Data Collective, Andreessen Horowitz, Matrix Partners and Webb Investment Network. To read the announcement, visit here.