I was thinking of this site:
www.sexforwomen.net
It only has one link exchange and is made primarily of articles. I haven't changed it in ages, and it's probably overoptimised. It's also guilty of interlinking between my own sites. This site is on page 10 for numerous keywords.
There was a time, way back in the distant past, when it was number 1 for a quite a few phrases.
I'm thinking I need to go and nofollow all my own links to see what happens.