How many blogs does one person need? I can understand that business and private interests might call for separate blogs, or you might want to separate your own everyday life from your involvement with a club, or charity, or other organisation for which a blog could be useful.
What about hobbies etc? Supposing you are interested in, say, cycling, oil painting and genealogy? Is there any advantage in keeping these in separate blogs? Couldn’t they be catered for equally well in a single blog – but one that is carefully divided into separate categories etc?
I will be interested to hear you views.