Know-How Exchange : Strategy

I'm in charge of redesigning a B2B professional publishing web site. We sell compliance information, like what the Fair Labor Standards Act requires you to do. Our site has had a confused mission. We weren't sure whether we were selling or providing information. I want to redesign the site with an emphasis on sales.

I'm looking for guidance, such as ...

+ case studies on redesigned sites (b2b) that increased sales
+ examples of web sites that sell well.
+ examples of good product catalog pages.
+ or, generally, anything you think I should read to help out with this project.

Thanks,

Greg