SUMMARY: As we initially forecast in early February, co-registration has turned into one of the quickest growing online advertising formats.
Co-registration is the ability for an advertiser to place a quick offer check box on another site's registration form. So as new users register at popular sites such as Hotmail and McAfee, they can also click on a variety of third party offers at the same time.
Reader's Digest is practically the poster child for co-registration buyers. Andrew Bein, General Manager for RD.com and the Company's Internet tactics in general, laughed when we told him this, saying, "That's a good thing...