Check this blogspot out:
Someone named Paul from Madison (an American!) has put a well written series of blogs (8 to date) on all the collaborations Johnny's done since the Smiths split. What he does is chronicles all the collaborations Johnny has taken part in. (I didn't know he collaborated with Mac the Mouth!). He includes mp3's of certain songs involving Johnny. I've read 6 parts so far. I'm looking forward to reading about the Healers period.
The first part is under previous posts starting with 'But It Was Easy For You'.