Metering interactive electronic activities

One or more non-transitory computer-readable storage media having stored thereon computing instructions that, upon execution by one or more computing devices, cause the one or more computing devices to perform operations comprising:

• establishing, by a media conferencing service, a plurality of media conferences;
• receiving, in response to establishing the plurality of media conferences, a shadow object from each of a plurality of devices participating in each of the plurality of media conferences;
• determining that the shadow object from each of the plurality of devices matches a corresponding shadow object maintained by the media conferencing service;
• determining that a fingerprint for each device matches a corresponding fingerprint maintained by the media conferencing service, the fingerprint comprising a plurality of characteristics that are used to identify each device;
• identifying unique users participating in the media conferences based at least on the fingerprints and the shadow objects;
• determining a ratio corresponding to a number of unique fingerprints divided by a number of unique users;
• and
• limiting access to the media conferencing service based on a comparison of the ratio to a threshold.

A computing system comprising:

• one or more processors;
• and
• one or more memories having stored therein instructions that, upon execution by the one or more processors, cause the computing system to perform computing operations comprising:
• establishing, by a media conferencing service, a plurality of media conferences;
• receiving, in response to establishing the plurality of media conferences, a shadow object from each of a plurality of devices participating in each of the plurality of media conferences;
• determining that the shadow object from each of the plurality of devices matches a corresponding shadow object maintained by the media conferencing service;
• determining that a fingerprint for each device matches a corresponding fingerprint maintained by the media conferencing service, the fingerprint comprising a plurality of characteristics that are used to identify each device;
• identifying unique users participating in the media conferences based at least on the fingerprints and the shadow objects;
• determining a ratio corresponding to a number of unique fingerprints divided by a number of unique users;
• and
• limiting access to the media conferencing service based on a comparison of the ratio to a threshold.