The grassroots approach of last.fm already proves extremely powerful in regulating our access to music at our desk. But one more important connection has been made in last.fm: The pooling of global links with local interaction. Based on your taste profile, you get recommendations for concerts in your neighborhood. Thus, last.fm provides a viable structure, making links in communication between global and local possible that used to require complex promotion embedded in the roots of the local music scene. The selection appears as contingency, but is that really true for everyone? Make no mistake: Last.fm may look grassrootsy, but it is already an institution of social power.