METHODS AND APPARATUS TO DETERMINE RATINGS INFORMATION FOR ONLINE MEDIA PRESENTATIONS

摘要

Methods and apparatus to determine ratings information for online media presentations are disclosed. An example method includes receiving pingback messages corresponding to presentation of media at a client device, determining a portion of the media that was presented at the client device based on the pingback messages, obtaining demographic information associated with the client device, and determining a demographic characteristic associated with the presentation of the portion of the media based on the pingback messages and the demographic information.