Personally, I define blogging as a passion and although it could be considered as that, having an inspiration every now and then in blogging would do wonders for one’s blog post. Some of my inspiration could be from my happy moments or even my most irritating ones.
Here are some examples of my blogging inspiration:
a. Happy moments – These happy moments could be very simple ranging from a very satisfying meal or being recognized from your work. These simple things could bring about a positive attitude in me hence my inspiration for blogging.
b. Irritating moments – These situations could inspire a mouthful of insults and very misplaced anger because of what happened. Of course, I ended up dropping countless hateful words towards the product/service/person that could be really damaging to me personally but at the end, it was satisfying.
c. Current news – There is always that temptation of commenting and expressing your own opinion about the latest buzz and controversy in the world regardless if its about celebrities or serious global matters. It’s an itch that just have to be scratched.
One thing that my blogging inspiration has are intense emotions regardless if they are positive or not. These moments help me in my blogging and who am I to complain? 
Hmm, wow I guess I have been inspired by irritation but have never given it much thought.
I agree with you Elaine. BLogging should be our passion. Passion to share what we've learned and we knew about certain topics to other people. That's why in order for us to be passionate always we need to inspired all the time with what we are wrting.