Hi RCR,
I think you should work backwards from your target audience to build up your on-line presence. Given that it is most likely to be 30-50 year old females who have somewhat lost themselves in their marriages, I would suggest two on line environments
- parenting websites
- how to be a stepford wife type websights.
I would target those with a very large circulation that have relationship sections in their on line forums, and allow links. I would start to answer a few questions when it sounds like MLC, real basic stuff, what MLC is, how to react etc with no jargon. Once you get established on a couple of these, word of mouth will spread amongst its members and I would suggest it could lead to quite a bit of exposure for your website.
Once you have that increased exposure, it would then be easier to become an "expert" on either those sites, or others.
Those are my thoughts, anyway.