I just came across another interesting blog: How to Kill Your Imaginary Friends.
It's author, Dr. Grasshopper, graduated from medical school in May and just started their residency.
Most of the posts aren't specifically about science fiction - although Joss Whedon, I'm Calling You Out discusses the incorrect portrayal of spinal tap in an episode of Dollhouse.
I especially enjoyed the posts on how someone could really die of a broken heart and Tools for the Toolbox: Pellet with the Poison (who doesn't like a good fictional poisoning?).
Check it out!