I just received an e-mail from Yahoo! Search Marketing regarding their minimum bids. The $0.10 minimum bid has been removed from sponsored search. It sounds like they have implemented something similar to Adwords with minimum bids varying per keyword.
Here is what their e-mail said,
“Starting in the next several weeks, the minimum bids for a number of Sponsored Search keywords will no longer be fixed at $.10. Your new minimum bids can be lower or higher than $.10. Content Match minimum bids currently will remain at $.10.”
