The Gmail Objective-C SDK written by Google provides access to the JSON API considering Apple application development. It is compatible with iOS 3+ and Mac OS X 10.5+. Along with the access to the Gmail API, the Objective-C library can also interact with the AdSense, Blogger, Calendar, Drive, and Fitness Google APIs.
Eleven APIs have been added to the ProgrammableWeb directory in categories including Social, Data Mining and Graphics. Highlights include an API which provides DigitaltMuseum collection data in Norway and Sweden and an API to retrieve postal codes globally. Here's a rundown of the latest additions.
"Get rewarded for being social" is the slogan of PeerPerks, a new service recently launched by social media influence ranker PeerIndex. Less than a month after PeerIndex has extended its offering by providing insights into the topical influence of a user, PeerPerks is the next step of the company to make "social influence" an actual good.
Gowalla, Foursquare, Yelp, Facebook Places, the list goes on. There's certainly no shortage of methods to tell people where you are and what you're doing while you're there. Startup Whatser, built on the SoGeo API for location-based apps, has jumped into the ring with a different approach to check-in services: to be useful.