Seevl is a new kind of music discovery engine. It allows you to find how artists are similar to each other and which artists are most similar to each other, among other things. It also allows you to comment on the notes about artists within the database. This is all well and good, but better yet, it has the Seevl API, allowing developers to integrate Seevi into their own applications.
Nothing on a social website gets old faster than looking at the default avatar. That's the square graphic meant to represent a user who hasn't uploaded a photo. There's nothing to be done about this, right? Think again: there's an API that can give all your users a unique graphic.