service which allowed developers and site owners to use structured data to make Yahoo!

Search results more useful and visually appealing, and drive more relevant traffic to their sites.

Run-time data was limited to infobars, as an external fetch would take too long for the search page to render.

Webservices could be chained to query multiple sources and aggregate them onto the search page.

The data was transformed into the display template using PHP hosted on Yahoo!

In 2010, Yahoo shutdown SearchMonkey in favor of Microsoft's Bing search engine.