co-registration offered by some portals

how efficient is this strategy?

[starec]

I just got a presentation offering me to become a "partner" of a local portal. What this means is that people who register for their webmail accounts there can opt-in to register with their partners simultaneously. The fee per registered user is negotiable.

I was wondering what experience other people have with this type of arrangement. In particular, I am interested in the "quality" of this kind of co-registered users, compared to the group of users who register directly in my site.

By the quality I mean the shopping habits and churn-out rate of this type of co-registered users.

Any (ex)M$N/yahoo/lycos partners around?

[jeremy goodrich]

Depends on lots of stuff. Opt in (they check the box) or opt out (they have to uncheck it or else you get their info).

Price per registration? Does the audience make sense for your site? Do you have experience marketing to a list or building one from a 3rd party source?

Logging everything to a seperate db would be a good start, make sure it's opt-in (higher quality that way) and track the results of the db seperately.

Over time, you'll have an accurate picture of the media buy and whether or not it made sen$e. :)

And keep in mind conversion rates, even on opt-in, will be very low...