Read books.

You can't find the interesting ideas and topics outside. They are in you. It has to come from your knowledge and experience. For some reason, while reading books, lots of thoughts surface. Sometimes I have to re-read pages because I will just continue reading while thinking about something else. You can write the thoughts down and if they are good, turn them into posts.

My guess is that since the reading is too slow compare to your thinking, it allows you to think deeply about things and gives those thoughts an opportunity to surface.

I think this only applies to non-fiction books though.

Even fiction books can be incredibly insightful, so don't just restrict yourself to nonfiction.

I don't usually blog, but I have been writing micro-blogs, which is somewhere around 350 words or more on Quora, here is what I can tell you:

1- Always having to answer a question is important and here is why: The fact you answer a question, means that there are more unknown things relying behind this question that your audience don't know.

2- Try being exposing yourself to as much information as you can about! This might sound less intuitive, but it helps alot with building perspectives and being less biased.

3- Have an opinion and don't be afraid to actually back it up. I love it how PG goes badass by stating things that others can't really say outloud, but because he have all those awesomely explained examples he backs his arguments.

4- When you write, be open to critic, but don't change your style, because after you get to have this very different style that is nourished from different inspirations.

5- On that note, don't be afraid to write, I have no issue giving a speech in front of 500 people, but I was scared to post something I thought of. There i a self confidence that you build after a while when you practice writing.

Like I mentioned before, picking inspiration is very important.

My very first inspiration of writing about anything was Joseph Campbell's book: "The Hero with thousand faces"

I still have horrible grammar mistakes, run on and verb tense issues, but it's okay you improve over time.

I think it just starts with being curious about the world around you - write about what you see and what interests you. And in the beginning write for yourself. Don't think about audiences and reach and all of that stuff. That will come as you find your voice and what you're passionate about writing. Also, the most valuable posts come from the people that have had the experiences to write about. So just living and having a diverse set of experiences will get you great material to write about. Most of all, don't try to sound like anyone but yourself. People will connect with that.

As I'm working on a project, I keep an eye out for the insights that arise which make me able to complete the project. If any of these insights are not entirely obvious, I note them as I continue working. When the project is done, I consider writing up a blog post about how those insights helped me complete the project.

A good filter for whether any particular insight is worthy of a blog post: If someone were trying to do a similar project, and their googling led them to this post, would they be more likely to complete their project? If the answer is yes, you've probably got a decent blog post.

You write about what you do. Write about what you learn, not about what you are an expert.

Honestly, I have a lot of difficult to do it. Most of the time,I suffer of impostor syndrome. I don't want to write because I'm not an expert about the topic. You have to ignore it and go ahead.

write about what you are an expert about and the insights that guide you in your busines/life/hobby/job