Yahoo! Answers made a slew of improvements that streamline search to find the information you want on the world's most popular question-and-answer site. "First up, three new sorting options near the top of the search page are added. You can now sort search results by "Relevance," "Newest" and "Most Answers."
If you've a tendency to search for a particular topic more than others, you can now perform an "Advanced Search" and save your filter settings for future searches:
You can add up to ten saved searches to "My Saved Searches" list and edit or delete them at your discretion. Also, coming soon is a new "Digest Email" that'll send you an email once a day containing the top 3 questions from each of your Saved Searches."
More Info: Changes to Answers Search