In addition to their app, GeoPapyrus offers open source developer tools for documenting media and sharing videos, images, and audio with social apps through their Augmented Reality platform in the cloud. The GeoPapyrus Audio Recognition, Image Recognition, and Facial Recognition SDKs allow developers to add multi-faceted media recognition into their iOS app to use for user authentication, or for sharing on social accounts.
Strutta provides a platform to "engage your audience and convert fans to customers." It does this by launching and managing contests, sweepstakes, coupons, promotions, and by providing the Strutta API. For example, Crate & Barrel ran a wedding contest to drive couples to set up their wedding registries at the company, and featured friends and families of the contestants voting on the results to generate increased customer involvement.
If you're using Twitter's Search API via the api.twitter.com sub-domain, you have a week to switch to search.twitter.com, according to a post from Twitter's Taylor Singletary. The endpoint being removed has not been officially supported by Twitter, though other supported calls use the same sub-domain.