Where is all the good CPC advertising?

I am looking for a list of good advertising venues that charge on a CPC basis. Ours is a business to business software product for email marketing. For an average sale of approximately $440 we require 150,000 ezine impressions. At a cost of anywhere from $20 to $30 CPM ( $3000 - $4500 for the impressions that we need for 1 sale ), this obviously is not cost effective! http://www.mailworkz.com




http://www.mailworkz.com