Google, Yahoo - Adsense, YPN and other info

Yahoo contextual Ads, along with MSN Ads coming up, what will this mean to Google Adsense? Can they hurt the bottom line or will the competition just made everyone stronger? It seems in life that 2 is competition, but 3 is a crowd. So if Google takes the top spot, who will take the second? As bloggers go full time in the business of blogging, these questions become all important. Pick the winner and reap the rewards, pick the loser and be left behind.
What it comes down to the availability of ads to the company, so that if someone searches for music they get ads on music and not on merchant accounts. Google we know has an abundance of ads for everything. One would think that both MSN and Yahoo can pull in the ads as well.

Websites / Blogs etc is what comes next but must happen in a logical order in order to keep advertisers happy. You need the cart before the horse, yet you need the horse first. So Yahoo seems to be managing it well and has a good ability to do that. MSN has seemed to do things prematurely, but time will tell.

I think 2 will do the best, but maybe with the internet 3 is not a crowd.

http://jensense.com is always good when it comes to these programs.