Wordpress gurus, please help me think through this site architecture question: multisite network, or sub-categories?
So I'm building a site that contains a number of sub-sites, and those sub-sites will occasionally share content. They will have the same categories as one another.
So, for instance, let's say site A is about Dogs, site B is about Cats, site C is about Parrots, each their own domain name. Each site will have the same theme and navigation as the others - categories like tips, adoption, feeding, photos, etc. And it will sometimes be the case that we have a Tips story that is germane to both dogs and cats, so that same story would go on both site A and B, in the Tips category, for instance.
My dilemma is whether it makes sense to use the network-of-sites
feature in WP, which I have read about but never used, or simply make Dogs a category that has all of tips, adoption, etc. as subcategories. Then do the same with the rest - each site is a top-level category, with subcategories.
I'm having trouble seeing all of the pros and cons of either approach. I could easily make the Dogs domain address redirect to a query that only pulls content from that category. But I have this nagging feeling that this is a messy approach for reasons I'm not thinking of yet. I see from the documentation that the network functionality doesn't allow global categories, which is a bit of a concern for going in that direction.
Any advice, insight, wisdom? Thanks in advance.