PJ Brunet

PJ Brunet

From Sean Michael Kerner at Clickz:

The study also finds 39 percent have no idea what method of user identification they use for their online marketing efforts. True first-party cookies were reported by 19 percent, while vendor-supplied first party cookies were used by eight percent of those surveyed. Identification by IP address was reported by 13 percent, and 10 percent went a half-step further by identifying users based on IP and agent. Ten percent reported using third party cookies. –8/11/2005