I understand where you are coming from. You feel that if you are truly interested in a topic, you will explore it without ny other reason or incentive. But I

I understand where you are coming from. You feel that if you are truly interested in a topic, you will explore it without ny other reason or incentive. But I don't think they are saying they are learning for teaching's sake (what's wrong with that anyway). They are interested in the topic. But, having to put what you learnt into words for someone else, makes you crystalize your understanding. It reinforces what you learnt. Makes it stay more permanently in your brain. So it enhances your learning. Plus, answering questions raised by your readers makes you delve deeper. Just my opinion. And if you proclaim upfront that you are learning while blogging/teaching, your readers are free to read or instead find a well known expert and read their book/blog. Amazon reviews, blog comments etc. also tell you what you are getting. I have heard others say that when they want to learn something, they ultimately teach it and I have seen one of them live it. And I will say it works. She may not be The Expert on the topic, but her knowledge and passion grows everyday. I have been intending to put this in practice myself, high time I did!! Tonight!