The subject invention provides a means of automatically detecting and
recording a person's use of magazines, i.e. printed media exposure, for
the purpose of market research. The present invention comprises one or
more electrically conductive marker regions applied to certain specific
locations on one or more magazine pages. In one general embodiment, the
presence and relative separation of the marker regions are detected by a
capacitive sensors and electronic device that stores, processes and
communicates the data wirelessly to an external device. In another
embodiment, a passive chip less tag is used to indirectly measure the
change in conductivity of the conductive regions caused by prolonged
exposure to air or light. Exemplary methods are described for acquiring
readership and exposure data using the present invention.