With onResponse's CPL/CPA model, clients can now use ValueClick for both growth-oriented acquisition strategies like banners and opt-in e-mail, as well as for affiliate marketing which can serve to further reduce a marketer's overall blended acquisition cost.
Also, like ValueClick, onResponse is a financially-sound online advertising company. The company was "bootstrapped", is run very lean and with tight cost control, and already has impressive revenue and profit.