Voxbone API offers real-time delivery of mobile and toll-free numbers from over 50 countries. Google makes the cost of cloud storage nearly free. Plus: the Australian Bureau of Labor Stats stealth API, and Acquia scales API calls for a major train operator.
Free blogging service Posterous is simple to use, but posts several types of content via e-mail or web: video, audio, pictures, and documents. For some users, though, they might prefer more enhancements to the interface, or a mobile app. For them, and the developers that cater to them, there's the newly updated Posterous API. A complete replacement and rewrite to the previous version, this allows a lot more access to developers, including administrative options like adding sites and users.