The Yahoo BOSS API provides sets of data to create customized search engines and innovative user experiences. This Yahoo BOSS Ruby library created by Tobias Begalke contains configuration and parameters. Within parameters, developers can find image search service, news search service, blog search service, spelling service, and related service. For more information, check the BOSS API guide at https://developer.yahoo.com/boss/search/boss_api_guide/
AudioBoo brings the familiar tape-recorder type interface to the web with all the fixings. Take your audio recording, add a picture, a location, put it in a social context, throw in popularity ratings and you have AudioBoo. The simplicity and social aspects of this service make a great platform for podcasters while providing another avenue of media discovery for users. But it's new and still changing. If you're feeling like an adventurous explorer, ready for twists, turns and surprises, jump on in to the AudioBoo API.
In response to developer feedback, Twitter will soon add semantic versioning to its Ads API so that developers can more easily deal with new and deprecated features. Additionally, Twitter is increasing the time it supports deprecated versions of the Ads API from 30 to 90 days.
Microsoft is one of the first--and certainly the largest of--customers of Wolfram Alpha's commercial API (our Wolfram|Alpha API profile). For math and nutritional searches, Microsoft's Bing now uses Wolfram results.