Keep commenting and eventually luck will strike you as well.
Notice when you click on my name that I have nearly 1,500 posts. Most of those are comments made on other people's blogs. Most of them didn't earn me a penny.
But sometimes we get lucky -- make the right comment at the right place, at the right time :)
@jamesbrown can u plzz follow me
I'll give you a follow for now, but if I'm not attracted to what you offer on your blog I'll just drop you in the future.
Here's your chance to "wow" me :)