Saving liberal talk radio?

Politico has a piece on what it would potentially take to "save" liberal talk radio, which hasn't seen nearly the same success as conservatives did and have. Among the ways:

Maybe it’s time to move on from AM radio, what most people associate with political talk, according to some in the radio industry. Conservative talk is just too dominant, and there’s really no place left open on the dial for liberals to really make an impact.

Liberals should try the internet instead, according to the piece.

Read the other four here.