This is the officially supported PHP client made to interface with the Urban Airship API for PHP applications. The library supports PHP version greater or equal to 5.4.14 and it's dependencies include Composer, Httpful, and Monolog. Urban Airship supplies interactive push notifications. Their embeddable mobile marketing strategies and API are made to increase engagement utilizing push advertising, location-specific targeted marketing, and analytics.
PeopleBrowsr is another “noise to signal” processor of the social media tidal wave. The Research.ly platform they provide is impressive and engaging. I had to pry myself away from it. It is a tool to answer the question, "who in this social media landscape is relevant on this topic?" but that is just the beginning. The PeopleBrowsr API is a pay to play way to gain social media intelligence.