An NHS Blog
Although not a "Doctor Blog" nor a Medical Student, I still felt it necessary to include Tom Reynold's (a pseudonym obviously) Blog to our list.
His blog tells the tale of an EMS worker (paramedic) and the day to day struggle with good, bad, and the just plain wierd. Tom is putting out a book which will hopefully soon be published. I myself check this blog every other day, a definite read.
Random Acts of Reality