The Mailgun Ruby SDK by Mailgun communicates with the API to implement email, analytics, and validation features into applications. Includes REST client to work with HTTP libraries, in addition to installation with gem.
Among the three largest social networking sites the most arcane to deal with from a developer perspective is LinkedIn. Now PeopleLinx is trying to prove there is a viable developer opportunity surrounding Linkedin APIs. The company, which just picked up an additional $3.2 million in financing, has developed an analytics application for LinkedIn that allows organizations to more easily ascertain what people are connected to what potential key accounts.