I don't mean to nit-pick, but although I found the content to be very interesting, I also found it difficult to follow because it feels like the author's grasp of English isn't quite where it needs to be (although it's very close).
In particular, the phrase "back in a day" is used twice and I'm still not 100% certain whether it means that the actions were performed in a single day (which would be odd phrasing) or, more likely, if it's meant to be "back in the day", in the sense of "at an unspecified point in the past".
That said, I don't wish to put people off from blogging in English, especially considering it was an interesting article that I would not have been able to enjoy if it was written in Croatian. My (intended to be friendly) advice is to recruit native-English proof-readers. I think you won't need them for long.