Abstract: Methods and systems for measuring and gathering data relating to publication usage by participants in publication readership studies. Some methods and systems employ portable monitors carried by participants of the studies along with publications fitted with various devices, such as piezoelectric transducers, RFID tags and others devices and circuits.

Abstract: Systems, methods and devices for gathering data concerning exposure of predetermined survey participants to billboards are provided. A portable transmitter is arranged to transmit a signal containing survey participant data, and a receiver located proximately to the billboard serves to receive the signal transmitted by the transmitter.

Abstract: Systems, methods and devices for gathering data concerning exposure of predetermined survey participants to billboards are provided. A portable transmitter is arranged to transmit a signal containing survey participant data, and a receiver located proximately to the billboard serves to receive the signal transmitted by the transmitter.

Abstract: An audience data gathering device includes a microphone, a circuit board and a processor mounted in an enclosure. A compliant body is pressed against the microphone and the circuit board to couple the microphone to the processor through the circuit board. An assembly for making an electrically conductive connection between two components includes a compliant body pressing against the two components and having an electrical conductor extending on a circumferential surface of the complaint body so that the conductor is held against electric terminals on each of the components.

Abstract: Systems, methods and devices for gathering data concerning media usage by predetermined audience members. An audience measurement code in acoustic energy produced by a media receiver is detected by a portable media monitor. The monitor also detects a location code produced in a vicinity of the media receiver.