This is one of those "mom do I haaaaave to????" pieces of functionality that engineers (I say this as an engineer-type) hate. I would procrastinate for weeks b

This is one of those "mom do I haaaaave to????" pieces of functionality that engineers (I say this as an engineer-type) hate. I would procrastinate for weeks before implementing something like this. It's boring, complex, and affects a tiny minority of users. However to engineers like me, we have to remember that even though the number of end-users might be small, in this case they are inherently more valuable than the average user. They bring a cache of readers with them and if they like the user experience, can potentially evangelize the product for you more effectively than someone starting a blog from scratch can.