I was reading with interest over the weekend reports that Amazon is planning to come out with a contextual advertising program to compete with Google Adsense. Once MSN’s ad program comes out this would give affiliates, bloggers and other publishers 4 ad options to choose from – Amazon, Adsense, YPN and MSN.

Over at ThreadWatch, graywolf reports Amazon to Compete with AdSense

“Amazon.com the poster child for E-Commerce is testing the waters for a contextual advertising program that will compete with Google’s AdSense, Chris Beasley has some details on Sitepoint. Is the market big enough to support three big players, are there enough advertisers, does this have an effect on MSN’s program?”

Chris Beasley over at the Sitepoint blog gives full details: SitePoint Blogs » Amazon-Sense?