Each advertiser who noticed a change in their minimum bid said they noticed an increase by two to four times of their original minimum bid price. Here is a quote from the thread:
yahoo just raised my minimum bids by 3 -4 times on many keywords.. they must be out of their minds..
Google was impossible. And now Yahoo. Where to go?
But this is the reality of the game now. If your quality does not meet the definition of quality at Yahoo or Google, you will pay for it.
Let's poll our audience... Did your minimum bid increase in Yahoo?