Changes in Soundcloud's website have broken the app. It'll be a while before this is up and running again. Apologies.
Find out the people you're following who aren't following you back. (Depending on the number of users in your 'following' and 'followers' lists, this might take a while.)
Just to clear things up, if your profile link is http://soundcloud.com/foo/, type 'foo' into the text box.
UPDATE: You can now search from the URL. Just type http://soundcloud.onloop.net/?q=yourprofilelinkname to search. Also added, share buttons.
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