Arnold Kimn, MD, is quitting his medical practice to blog full-time about Apple because he found it was more profitable than practicing medicine. In 2000 while he was a fourth-year medical student, Kim launched the site MacRumors, a site devoted to news and rumors about Apple. Traffic grew over the years, and around 2003-2004, during the time he was starting his nephrology fellowship, ad revenue from the site started growing. Eventually, Kim says he was making more from MacRumors than he was from practicing nephrology and decided to quit medicine.