iTunes 8 introduced a new way to browse your music library, the grid view. In the grid view you can browse your libary by genre and iTunes displays a special image for each genre it knows.
The number of genres recognized by iTunes and receiving an appropriate genre artwork is limited though. Here
... [More] the iTunes Genre Art Manager comes into play. It allows you to add images to genres for which iTunes does not bring its own art. Also you can modify existing genre artwork to your preference. [Less]
LibreTunes lets you scrobble the music you listen to with iTunes to last.fm and libre.fm and any other Audioscrobbler service you use. Finally multiscrobbling gets easy!
All you need is an account for last.fm and/or libre.fm and iTunes on Windows. Start LibreTunes and iTunes will start with it.
... [More] Then everything you listen to is automatically sent to all the services you chose. [Less]