Mediums and psychics are generally ignorant in their own field, and when they open their mouth, they usually do more harm than good. Obviously, I speak from experience. Personally, I believe that I am a damn good medium, but I also know that I have a long way to go before I can claim any knowledge in the field of parapsychology. I do get brownie points for trying, though.
Luckily for all of us, there are parapsychology researchers out there, both professional and novices, who keep the light shining on this topic in a way that is both presentable and respectable outside our own community. A way I call smart skepticism.
Recently, I've discovered a smart skeptic, Alex Tsakiris, who hosts a brilliant podcast with some stellar interviews. It's called Skeptico, and well worth your time.
Here is an interview from his site with author, psychologist and skeptic
Dr. James Alcock.