Marketers interested in online branding using display advertising will soon be able to do so with Google Adwords. Google plans to introduce cost-per-click (CPC) ad buying in March, to give another payment option to its advertisers who use AdWords to place display ads on select sites.

Presently, display advertisers can purchase ads on a only cost-per-thousand (CPM) basis when using the site-targeting option to select specific sites on which to place their ads.

Some advertisers have been asking for a CPC option as they look for more flexibility in their ad planning and CPC makes it easy to measure ad campaign success.