Twitter4R v0.2.0 now provides 100% Twitter REST API coverage for Ruby. This is the open source project providing Ruby bindings for the Twitter REST API. Most appropriate for pure Ruby and Ruby on Rails projects.
Facebook added an application settings dashboard to give users a way to see what information is available to apps. The move makes very clear what was previously murky. The result should be users who are more likely to trust your applications, because it's harder for others to get away with tricking them into permission.
Visa has opened up its global payments network to developers releasing a set of new RESTful APIs and developer website. Developers will have access to different Visa platform capabilities via RESTful APIs including payments, analytics, alerts, ATM locations, geographical-based data, and more.