Seattle-based Trumba Corp., a developer of Internet-based calendaring software, reported today that Oregon Public Broadcasting has chosen Trumba Connect to power its online community calendar. Financial terms of the customer win were not disclosed. Oregon Public Broadcasting is a privately owned, not-for-profit public broadcast network with television, radio and Internet services that reach 1.5 million people across Oregon and southwest Washington each week. Trumba is a developer of Internet-based calendar software.