One of my Adsense sites has suddenly stopped producing 🙁 This site was consistently on the front page of MSN for a very popular search term. It appears that they have drastically changed their algorithm which results in very different sites attaining these top search engine placements.

Has anyone else experienced this? Any idea what the new algorithm takes into account? To most of you this is a non-issue as your site is optimized for Google, but I have had great success in MSN and found it easier to attain higher rankings. I guess those days are gone! This is a great lesson in remembering to diversify and not obtain all of your traffic from one source.