Las Propiedades de Internet más Importantes en USA: Audiencia y Publicidad

Ranking de Mayo´09 de comScore en USA:

comScore Ad Focus Ranking (U.S.)

Reach % denotes the percentage of the total Internet population that viewed a particular entity at least once in May. For instance, Yahoo!
Sites was seen by 78 percent of the nearly 194 million Internet users in May.
* Entity has assigned some portion of traffic to other syndicated entities.
** Denotes an advertising network.

comScore Top 50 Properties (U.S.)