"A little application to rank your favourite artists and albums by an estimation of how long you have spent listening to them. The form below takes your last.fm username, gets the lists of your favourite artists or albums and estimates the time you have spent listening to each of them based on the average track length. The resulting table shows the rankings based on the estimated listening time."

http://www.associativetrails.com/stuff/normalisefm/index.cfm?RequestTimeout=600

1. Sunn O))) (with almost a 1,000 minutes)
2. Melvins (with 1 minute less!)
3. Jimi Hendrix
4. Converge
5. Big Business
6. Fantômas
7. Black Flag
8. Jesu
9. Grails
10. Black Lips