Methods, apparatus and articles of manufacture to monitor streaming media are disclosed. Example media monitoring methods disclosed herein include presenting streaming media accessed via a network, extracting metering metadata from a metadata channel associated with a transport stream, the transport stream providing the streaming media to a media presentation device, in response to a detected event, reporting the metering metadata to a server, accessing an identification of secondary media for presentation responsive to the reporting of the metering metadata, and presenting the identified secondary media.