If you've found a broken link or typo or something or just want to say hi, use this email. If you have a request for a track, use the form on the requests page.
iain@[this domain]
I don't get horrifying numbers of emails so I'll certainly read it and almost certainly reply (read: please send me emails I'm lonely).
Here are some places I visit sometimes, in no particular order:
last.fm ::
steam ::
flickr ::
twitter ::
ccmixter ::
the freesound project