Urban Airship, the API company providing push notifications to smart phones, is now powering notifications on the new Amazon Kindle Fire. The company's Urban Airship API simplifies push notifications for developers using iOS, Blackberry and Android. Because Kindle Fire is built on Android, the company's work to integrate push to the Fire was already done.
Transloadit offers media upload, modification, and storage as a service for developers who need that functionality (or, as Transloadit's homepage puts it, "geeks who run web or mobile applications") but don't want to worry about it themselves. There aren't too many moving parts to it, but they're ones a lot of applications make use of. The Transloadit API's main functions include: file upload, image resizing, video file encoding, image thumbnail creations, and file storage on Amazon S3.