I don't do them - sorry
The only criteria for being listed in this directory is whether I think my visitors should know about your organisation. That means reviewing your website, which means that if I don't find you myself, you need to submit for review.
It is not too hard to get into my directory (88.8% of submissions are successful) but it is absolutely, totally & completely impossible to get in by offering an exchange link.
If you send an email requesting an exchange link you will simply not get a reply. Nothing personal, but all 'Exchange Link' emails are deleted on sight every day.