I have added Link Referral in a category all on its own. Yes, it is a link exchange program - and a very effective one at that. The best feature are the reviews - you can review others for credit and you will receive reviews from other members. It is a great way to keep on top of your site - what works, what doesn't work.
I have taken a lot from advice from these reviews and it has helped to improve my site. Special thanks to the person who told me the text in my sidebars was microscopic.
Rating: Highly Recommended 9/10