Minimum bids for a number of Sponsored Search keywords will no longer be fixed at $.10 for Yahoo Search Marketing advertisers. The new minimum bids can be lower or higher than $.10. Content Match minimum bids currently however will remain at $.10.

According to the YSM weblog post on the minimum bids subject, the amount set as the minimum bid on a keyword in Sponsored Search can vary depending on multiple factors, such as the relevance of your keywords (as measured by the quality of the ads associated with them), and the number of bidders and bid amounts in the particular keyword market. Advertisers, are you listening? You'll now have to meet a "reserve price".

As you can imagine, some advertisers are none too pleased with the Google-esque pricing model. One comment on the post sums up the thoughts of a few advertisers - "This is terrible, I'm going back to Google."