This. But also - if you just do it in any(?) of the popular blogging platforms then you can just use categories to separate your content and audience. WordPre

This. But also - if you just do it in any(?) of the popular blogging platforms then you can just use categories to separate your content and audience. WordPress (dirty word round here I know but I'll live dangerously) for example gives you all you need to basically keep stuff separate if you want - even down to separate look and feel per category, sub domains per category, and RSS feeds per category. Everything in one pot, but separated and separateable if you and your audiences want it. Much easier / cheaper / less fiddly all round, IMO.