Last.fm’s unwise decision
*** Please read Last.fm’s response below ***
Last.fm has changed their API; for those who are not programmers, an API (application programming interface) is a set of routines that allow a program to make requests to another program or web service. In and of itself, changing an API is not a bad thing and, in many cases, can be quite beneficial. For instance, adding new features to an API can allow programmers more options for interracting with the product.