This is a great case study relative to the importance of “Clean” data capture forms. One of our clients is hosting a webinar and when we looked at the initial data capture form and the history with previous campaigns we determined that it just would not convert so we took the initiative to build a new form for the campaign.
In the first leg of the campaign we have already had a number of people fill out the form and register. Please take a look at the forms so that you can see some best practices.

The latest campaign

http://www.expansionemail.com/clients/proactivedealer/2011/new/BDC-online-111411d.html

The clients form:

http://www.bdcexperts.com/bdc-boot-camp/

Our Form:

http://www.expansionemail.com/clients/proactivedealer/2011/new/bdc-registration.php