Nothing to say and still talking

I believe I shall never be old enough to speak without embarrassment when I have nothing to talk about. A. Lincoln

I agree with Abe Lincoln (see quote), that's why I am having a hard time posting. I'm worried that my posts will be either all whiney, or just too boring, or maybe too personal to put up on the world wide web. It seems most people online are quite happy to go on and on when they have absolutely nothing to say. I'd like to not be one of those people.