What else can I do to get the word out?

I currently have 3 dogs in my house that I am trying to rehome. A Bernese Mountain Dog mix puppy and 2 adult German Shepherds, one of which is heavily pregnant. I have posted fliers in the area and I have a few "courtesy listings" on petfinder. Not having any luck. I am also in the process of trying to pull a St. Bernard puppy from a high kill shelter so it's important that I keep the dogs moving. So what else can I do?