Sweet Spot just received word from Yahoo! that they have made a bunch of updates to their search platform-

Innovation:

Rich Ads in Search: Incorporate images or videos into your Sponsored Search ads
Search Re-Targeting: Target your display ads based on user search queries
Mobile Search: Expand your reach through Sponsored Search ads on mobile devices

Transparency & Control

Ad Delivery Report: See how your ads are performing on various partner sites and use this information to inform your decisions on which domains to block
Network Distribution (2010): Run your ads on either Yahoo! or its partner network, and set bids separately for each
Y! Search Marketing Desktop (2010): Manage your campaigns more easily and efficiently with this desktop application
Targeting: Define desired audiences through enhanced geographic targeting, day parting and demographic preferences

Value

BOSS: Open search web services platform that may deliver more traffic to your sites
Pricing Updates: Better alignment of what you pay with the value of clicks you receive

Consumer Relevance

New Search Results Page: Gives users tools to discover new information, explore related concepts, and filter search results by specific sites
Search Assist: Provides relevant suggestions when you type in the search box to help you quickly locate what you are looking for