Wading through reams of paperwork to gather data is no-one's cup of tea. Even in this day and age, not everything is achieved with the click of a mouse, and unfortunately, there are still many who have to sort through information gathered from hand written surveys, census forms and the like.
Our API directory now includes 37 campaign APIs. The newest is the Experian CheetahMail API. The most popular, in terms of mashups, is the LaunchBit API. We list 1 LaunchBit mashup. Below you'll find some more stats from the directory, including the entire list of campaign APIs.