Measurements based on panel and census data

A computer-implemented method for measuring a networked audience, the method comprising:

• determining a first set of network usage data based on a first set of signaling information obtained from a first subset of client systems as a result of the first subset accessing one or more common resources;
• determining a second set of network usage data based on a second set of information obtained from a second subset of the client systems as a result of an application installed thereon monitoring accessing of the one or more common resources, wherein users of the second subset are a sample of a larger group;
• measuring usage based on the first set of network usage data by determining an initial count of unique visitors that accessed the one or more common resources during a time period by determining a count related to signaling of the first set of signaling information;
• determining one or more adjustment factors based on the second set of network usage data;
• and
• generating one or more audience reports by adjusting the measured usage using the one or more adjustment factors.

A non-transitory computer-readable medium comprising instructions executable by at least one processor to perform a method, the method comprising:

• determining a first set of network usage data based on a first set of signaling information obtained from a first subset of client systems as a result of the first subset accessing one or more common resources;
• determining a second set of network usage data based on a second set of information obtained from a second subset of the client systems as a result of an application installed thereon monitoring accessing of the one or more common resources, wherein users of the second subset are a sample of a larger group;
• measuring usage based on the first set of network usage data by determining an initial count of unique visitors that accessed the one or more common resources during a time period by determining a count related to signaling of the first set of signaling information;
• determining one or more adjustment factors based on the second set of network usage data;
• and
• generating one or more audience reports by adjusting the measured usage using the one or more adjustment factors.