Tacoda Systems Tracks Consumers' Online Activity and Delivers Specific Banners

Tacoda Systems tracks consumers' online activity and delivers specific banners based on that activity. This tracking and ad delivery system has been installed on almost 3,000 websites, and advertisers pay on a pay-for-performance basis, which means that advertisers pay Tacoda Systems only when a consumer clicks on their ad. The tracking of online activity and delivery of ads based on that activity is called _____.

A) click-throughs
B) behavioral targeting
C) spamming
D) blogging
E) cookie targeting