PHP Last.fm API is a class which allows you to quickly and easily access the Last.fm API to get information from their database about: albums, artists, events, geo locations, groups, user libraries, playlist, tags, tracks and users.
Last month, ProgrammableWeb reported that HootSuite was one of five companies to partner with Twitter and has integrated the Twitter Ads API into a limited beta version of HootSuite Enterprise. This week, HootSuite announced the launch of the HootSuite Developer Program which offers developers the opportunity to create high quality social media apps using the HootSuite platform.
The Independent Online Distribution Alliance (IODA) has just announced its IODA Open API, currently in beta. The API offers many of the typical resources that you would expect from a music metadata service, with a few extra goodies like these album attributes: UPC code and primary label. Comparing album API results between IODA Open and iTunes, IODA is packing a lot more information into the response.