I often see new designs using really great fonts, icon sets, etc that I've never seen or heard of, and am always curious as to how the designer stumbled across them.

So when embarking on a new project, what is your process for discovering these things? What are your goto resources to keep abreast of the latest?

Disclaimer: I'm fully aware that the process is often abstract and serendipitous. But if you can distill and structure your discovery workflow, I'd love to see it.