The document summarizes presentations from the OpenGLAM Working Group at Wikimania 2014 in London. It describes initiatives in several countries to open cultural data from galleries, libraries, archives, and museums (GLAMs) and promote best practices. The Netherlands program includes OpenGLAM masterclasses to train GLAMs on open data. Germany's program included a cultural data hackathon. Switzerland conducted an OpenGLAM benchmark survey of heritage institutions and a pilot project encouraging institutions to contribute to Wikipedia.