muspy is a free / open-source album release notification service.
To make it easier to populate the list of artists you want to follow, muspy allows to import top artists from your Last.fm account. Today this function became more flexible: in addition to getting overall top artists, it can now import most frequently listened artists in the last 12, 6 and 3 months and 1 week.
I also lifted the limit on the number of artists that can be imported from 200 to 500, and increased the number selected by default from 50 to 100.
If you are a music lover and never tried muspy before, give it a go! With muspy you will not miss an album release ever again.