Here is my Lastfm button for you to place on your website and direct visitors to your LastFM profile! I designed and developed this button with Photoshop CS2.
Last.fm is an Internet radio station and music recommendation system. It merged with Audioscrobbler website on August 2005. On Lastfm you can build a detailed profile of your’s musical taste, including a playlist of the songs (organized by date, artist, genre and so on..) you listen with your players (installing a plugin on your computer or iPhone, iPod) or played on Lastfm stations selected via a collaborative filter. The profile you create on Lastfm is visible on a customizable web page, with social networking features included as well.
Here is my latest 120×120 and 70×70 pixels LastFM button placed on a transparent background for you to use on your website no matter what background color you are using:
Lastfm 120x120 transparent background
Lastfm 70x70 transparent background
Here are my older 120×120 ones:
with the 70×70 pixels versions:
Feel free to grab the buttons but please leave feedback if you are using it! 
Ps. Do you like this? Check out also the Flickr button and the Twitter button!
Hey! Your buttons are very nice! I’m using the last.fm, flick and twitter ones. You should made tumblr buttons someday
Great article. Thanks for the great resource.
Really nice buttons. I’m using one on my tumblr.
@Michelle: thanks! I had planned to do also a Tumblr button but didn’t have time yet.. I’ll do it in the next few weeks I guess
How to use this on tumblr?