If you wonder which of the 267 APIs on this site people view most often you might be surprised. It's not Google Maps, it's YouTube. Which has been true for quite some time. But the number of mashups using YouTube has been small, until recently when they've started to pick-up.
A new Facebook Keyword Insights API has been made available to a select range of media partners in the United States, allowing registered developers to create finer-grain, real-time data analysis of popular reactions to the latest news, sport and pop culture stories.