Recently, I've been writing many things in my blog(s). I used to write things related to information technology (IT). It is not exclusive on IT, but IT is the main theme.
Now, I am writing different things; live, music, poems, business, religion, and much more. (I don't think I will write about politics, though.) When I write about different things, I use category (a feature provided by the blog provider - eg. wordpress.com) to indicate the type of my articles. I also use tags or labels to add some keywords and also to indicate the content of my articles.
This, apparently, is not good enough.
There are people who complained that they only want to read (my) articles that are related to IT, for example. Filtering based on category / tag / label is not good enough.
On top of that, my blogs are aggregated in many sites. Those (aggregator) sites take all my articles. They don't filter the articles based on the type of the content. So, in an IT aggregator site, they also see my poems and my articles about life.
One possible solution is to have multiple blogs. Each blog is dedicated to a certain topic. I have taken this road. I have more than a dozen blogs and most of them are active. (No, I am not kidding. I write a lot.) Again, my readers don't like this approach. If they want to read my articles (not specific to a certain topic), they have to jump from one blog to another. They don't like this (obviously).
I use planet to agregate my own blogs - called PlanetGBT - (thanks to Priyadi for providing the service). But, it is still to "complicated" for my readers. On top of that, I use multiple blog providers (wordpress, blogspot, multiply, ...) to host the blogs. Sometimes readers must have accounts in those providers to give comments. This is another problem. They don't want to create more accounts. Having one blog account is (confusing?) enough for them.
Complicated, eh? One thing is clear; tagging and category don't work as expected.
I am still going to write many things in a blog. Yeah, I will get (more) complaints for this.