The Sklik PHP SDK by Michal Kuchta allows API interaction to access search advertising features. Library and examples available, in addition to a tutorial at https://github.com/niximor/php-sklik/blob/master/sklik_tutorial.php
Yahoo has revealed more details on its Yahoo Search BOSS, which is undergoing a major transition due to the Yahoo and Microsoft Search alliance. It had previously announced the move to a paid version of BOSS, which stands for Build your Own Search Service. Details have now emerged, with timelines and a pricing structure.
Our API directory now includes 112 advertising APIs. The newest is the TagLabs ActiveTag API. The most popular, in terms of mashups, is the Google AdSense API. We list 74 Google AdSense mashups. Below you'll find some more stats from the directory, including the entire list of advertising APIs.