Do you have ads on your blog/s? Do you use Google Adsense or other similar ad publishers?
I have Adsense on all my blogs and affiliate ads. It's a useful way to monetize blogs.
Did you ever earned that "100$ a day" that people try to achieve?
No! Not so far. At least not with Adsense. Maybe it is rare. I have read success stories of some who do. It's nice when someone can earn that. I'm sure in time it will happen. Until then, I will keep publishing and trying. c:
Is it ok to ask how much is your average per day?