Event ticketing service SeatGeek has made its internal recommendations service available in the SeatGeek API. Developers can now integrate the advanced recommendations functionality of the SeatGeek platform into websites and applications.
I love Rdio. All the music I want to hear (that happens to be available in their library) for $10 a month. It gets better. I can download the songs to the mobile Rdio apps for offline listening. Even better still, there's an Rdio API and it's pretty rich, as described by Rdio's Ian McKellar in the video below.
Music video content provider MTV recently announced that its Content API is out of private beta and available to the general public. Available as part of a new MTV Networks Developers Tools web site, the RESTful API gives access to content from MTV, VH1, CMT and Logo. The API supports a variety of open standards including OpenSearch and MediaRSS for data results (see our new MTV API profile for more details).