The Social Networks Node.js SDK by Léo Pradel-Node is a meta SDK that serves as a social API client for node.js. It supports access, promises, and callback for the following social API's: Twitter, Tumblr, Facebook, and Instagram, as well as Github, via the same function calls.
Google has introduced a Web Share API developers can use to enable sharing capabilities on sites. The API allows users to control how and where data is shared by enabling websites to call on the host platform’s native sharing capabilities. The API can only be used on websites with a secure origin.
AddThis, a leading social infrastructure and analytics platform, has just announced the release of Social Brand Advocates, a new managed marketing service created to help companies connect and engage with consumers that are loyal and enthusiastic about their brands. In addition to marketing services, AddThis offers social plugins, analytics and consumer engagement tools as well as a variety of APIs and SDKs that allow developers to integrate the AddThis platform into websites and applications.
User authentication in apps is a pain, even if you've built an authentication system dozens of times. Forms, sessions, user tables, validation, password management, the list goes on in the seemingly never-ending to-do list for setting up a simple signup, login, and logout system for your app. OpenID company Janrain makes it easier, building on top of social networks.