Pretty much anything that currently is of interest to me gets dumped into my journals.
My favourite brand of notebook to use for my journals is Moleskine. I typically use the softcover, though I do enjoy the hardcover ones as well.
Anyways, I'll let the pictures do the talking.
Just a few pages from my journal. May do a few more posts' in the future.
Do you journal? What kind of things go in your journal?