- Impact
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Mamma.com has added an auction system to their keyword PPC engine like Google and Overture. There isn't much detail on their website about it, but it was an announcement in WebProNews mailing list.
http://www.mammamediasolutions.com/advertisers/ppc/features.html?md=
http://www.mammamediasolutions.com/advertisers/ppc/features.html?md=