This report utilizes data and information reported directly to PwC, in addition to information available publicly, by companies representing thousands of websites, in addition to other online ad selling companies.
The results reported are considered the most accurate measurement of Internet/online advertising revenues because the data is compiled directly from information supplied by companies selling advertising online.
All-inclusive, the report includes data reflecting online advertising revenues from websites, commercial online services, e-mail providers, as well as other companies selling online advertising.