Agreed Jigg, we use our software product http://www.evidencewipe.com on ALL of our exit links right now, even for our non-adult sites with 'exit' type links on them and it does pretty well for us.

We actually also use randomly (because PPC revenue dropped) Sedo and redirect one of our undeveloped domains there and drive exit link traffic to that domain to make upwards of $0.10 per click.

Regards,

Lee