Link building with About.com and ehow.com

[jusdavi]

Does anyone know if About.com has a policy on providing back links to websites.  A client of mine has had a product reviewed on about.com as well as being included in a "how to" article, but no back link was provided.  I checked out the page and noticed "paid for advertisement" back links over random words but no back links on any of the pages I randomly searched that were related to the topic being discussed.

[SEODinosaur]

There must be a way to include your link..

First link, category search and in the results theres a Supplier Guide - P.1 - P.7

Second link shows one of the listed suppliers from one of the pages and they have links to their site on the page.

http://metals.about.com/od/manufacturedmetalsgoods/l/aametalbldgs.htm

http://metals.about.com/gi/dynamic/offsite.htm?site=http://www.heritagebuildings.com/