I recently finished GF1, so I'm not ready yet to focus on a particular style, but I started listening to a variety of guitar music to set future goals. By doing so, I explored a few styles more in depth and came across delta blues and that's the first genre I'd like to master. (I even bought the Gretsch Jim Dandy, specifically for this reason.)

Maybe it wasn't guitartricks as such, but learning guitar definitely inspired me to do some research in genres I didn't know well before.