The Marvel Node.js SDK by Matt DesLauriers provides an interface to access the Marvel Comics API, which offers comics' data of all time since Marvel' origins. Installation, usage, and example are available. Private Api Key is required for server-side. See Marvel's characters demo at http://mattdesl.github.io/marvel-comics-api/test/
For snap-happy smartphone and tablet users, having somewhere to store their treasured pics is probably very appealing. Photo books have been a trendy favourite for a while now, and Printzel is an app-powered platform that allows users to create their own printed photo books directly from their mobile and tablet devices. The company also provides the Printzel API that now makes it possible for developers to offer printed books from their own applications.
Queeky is an interactive online drawing community for lovers of drawing and online art. The platform provides special drawing tools for users to create their own masterpieces and also showcases work from a worldwide collection of creatives in its galleries. The QueekyPaint API makes it possible to add this data to personal blogs and websites.
Google has announced several very interesting updates to its Book Search tools, including an embeddable viewer for book previews and a data API. These should open-up a wide range of book-related applications. This follows-up on Google's release in March when they launched the first API for Google Book Search, the Book Viewability API.