I wouldn't hide or deemphasis the forum too much. Life is complicated and lots of people have situations and questions that don't fit neatly into boxes. That and the personal connection and resources here on the forum is probably your strongest resource. People matter. A lot of folks won't make the leap until the have a chance to hash things out in conversation or see that there are faithful, normal sounding Christians who believe this.
And
@rockfox, could you write the 'historical retrospective' according to your outline?
I can. There are a couple books out there I haven't had the time to read which go into depth on the history of marriage and polygamy. Is there anyone here who has read them who could consult with me? I'll do the brunt of the work, just looking for someone to bounce ideas off and make sure I fit this appropriately in the greater history.
I'll get to work on editing the two existing sections. Question: All the other objections are scripture-driven, so would it make more sense to star adding cultural/sociological/political objections to that page, or should we have a new page to rehearse the nonbiblical or abiblical objections?
I think it is a good idea to break the two up. However there may be some linkages between them. For example, if someone brings up the Rom 13 objection, you can give them a theological answer, but also point them to an answer on the 'other objections' page showing it's not actually illegal under current US jurisprudence. A lot of the objections will be cultural, or will seem Biblical but actually have cultural underpinnings.
RF, if you want to do an article on concubines, that would work also, but I'd prioritize the history over that. FWIW, because concubinage is a controversial and often misunderstood or even deliberately twisted subject, I'd see that more as a blog post or something to posted on the forum or distributed as a newslettter article (so maybe also on the blog). IOW, not part of our 'intro' or 'basic' information, where I think it would be distracting at best, My two cents....
Ya, controversy aside, its just a complicated subject. Interesting as an advanced topic but not appropriate at the intro level. This subject isn't my hobby horse; I was just brainstorming in-depth ideas and it was something I'd studied.
It could be useful at the intro-level though to point out that, whatever concubines are, they represent +1 women and were regulated, not condemned under the law. Additional evidence that having multiple women isn't condemned. Without even defining concubine, it's a quick and easy disproof of the idea of 'one many and one woman' (exclusively, both ways). But I see what you are saying about distraction; presentation matters. It is rhetorically far more important on the website to deal with the common cultural objections to PM.
Another thing to think about in all this is search engines. A website rich in content will bring eye-balls. And if you have in-depth articles with a lot of content on the website end (as opposed to the forum which are often indexed differently) people searching for PM info will more easily find you. This also applies to how you encode the underlying html w.r.t. header tags, meta tags, and the like.