What to write about on your website / blog

Write something that you enjoy writing about! For example i like a lot of different things so i made a website about it which you can go to at the end of this article. If you have done something all your life or something that interest you write about it! This way you will not be bored or tired in updating your website or blog because you are very interested in it! Its like picking a job if you hate your job you complain about going every day if you love what you do you dont mind going at all am i right?