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
information technology, network, security, Indonesia, progressive rock music, budi rahardjo (or raharjo), education, life ... (in Bahasa Indonesia and/or English)