fortesso

Hello everyone. My first post here. I am going to set up a site regarding jazz for those who are not familiar with it and would like to get a closer look. I am going to create some sort of connection among artists. I will be able to borrow some info from last.fm (similar artists and top tracks and top albums of the main artists). But I would also like to connect jazz musicians by "INFLUENCED BY" and "FOLLOWERS". I managed to get some info from allmusic.com. But could you advice me other websites where I can get this info? I'd also appreciate if anyone point me to the sites where I can get information on yearly jazz charts.