This is a long question, I apologize in advance, and thank anyone who has the patience to stay with it.
I want to blog about a broad topic, but at the same time, focus on two or three narrower aspects of that topic. I want to dedicate a section of my blog to each subtopic. A new subtopic post would appear in the correct subtopic area, and also in the main topic area, but nowhere else.
I know I can sort of accomplish this with Categories if I use a theme that supports Custom Menus.
But I have several domains, one for the broad topic and one for each of the narrow subtopics, and I want to redirect each domain the appropriate place in my new blog - the main page, or the correct Category.
How do I do this? How do I redirect a domain to a wordpress blog? Can I redirect to a category?
Is Categories the right strategy in the first place?
Any help or ideas would be appreciate, or it is easier, point me to the right literature and I will research on my own.