Comic Reflections, a podcast about all things Silver and Bronze age in the world of comics, have dedicated a whole episode on the Phantoms 80th Anniversary.
You can listen to it here or download it on your iTunes/ Android devices.
They talk about the Hermes Free comic books, the history of the character, his importance, and also why he is not the popular hero he should be.
Thanks to Ohm for the heads up about this.