Readers could interest or not with your chosen topic, however it increases its value when you put effort and research on it. They will probably come back reading again and again. Give them things to remember, this will prove the usefulness and creativeness of the message you give to them. An online journal with a clever focus has all the breathing space on the planet. What does it means? Well it would be silly for such a blog to kill the amusement on it.
Happy blogging =)