Is the process of one company (publisher) offering another company (advertiser) ad placement on their subscription or membership forms page after a prospect signs up for their publication.  The “advertiser” or “sponsor” typically pays an agreed upon amount per name/lead acquired.  The placement for co-registration ads usually appears after the primary transaction of the host publisher and will likely be surrounded by several other co-registration sponsors’ offers.  The ad format is typically be a brief text ad and includes a small logo graphic of the advertiser’s publication.  In addition to ad placement on a subscription or membership form page, co-registration can all be a method of acquiring subscribers from other people’s websites and eNewsletters by paying per lead for each  person that signs-up. 

The pricing model is typically CPA (cost per acquisition) and is net duplicates and bad email address.  Average CPA is between $1.50 – $5.00.  Since co-registration leads are virtually “cold” prospects and may not know much about your company or publication, the best conversion rates occur when these leads receive a unique follow up email from the advertiser soon after sign up to start bonding.