Coming soon: Simplified keyword states and quality-based minimum bids.
In the coming weeks, your keywords will no longer be evaluated as normal, in trial, on hold, or disabled. Instead, your keywords will either be active or inactive, depending on their quality and maximum CPC. Each keyword will be assigned a minimum bid based on its quality. As long as its maximum CPC meets this quality-based minimum bid, your keyword will remain active and trigger ads. Learn more.
[edited by: eWhisper at 12:00 am (utc) on July 15, 2005]
[edit reason] Please don't copy entire pages. See TOS. [/edit]
Also why is Google keeping the date of the change a secret? It would be a lot easier for us to plan if we knew of the date. There have been bigger and more complex products for which companies have announced release schedules well in advance, why not for this? (It is another matter that MS keeps postponing the launch date for Loghorn but then it has the advantage of being a monopoly). Google has definitely improved in its communications but it still has a long way to go.
But if all of a sudden 2 competitors begin bidding on that keyword, it is fairly logical that the CTR for the keyword would be reduced somewhat.
It does not seem fair to the new bidder to handicap their bid positions by assuming that I will continue to recieve a 15% CTR on my ad. I am sure Google has enough historical data to make a statistical calculation of what my "predicted CTR" will be in the new three ad environment.
I am sure that there are other factors that will allow Google to calculate a statistically accurate predicted CTR, that is superior to a plain historical CTR.