These must be the greatest results for an online campaign that I have ever seen going from a prospect list from about 16.000 to a prospect list of 450.000 members.

The campaign: http://www.adverblog.com/archives/002721.htm
http://blog.coolz0r.com/2006/05/23/prepare-your-hair/

The results: http://www.marketingonline.nl/nieuws/ModuleItem47753.html (nl)
http://www.emerce.nl/nieuws.jsp?id=1776610&WT.mc_id=rss (nl)