Ryan Howard, CEO of PracticeFusion shows off the website at a local internet cafe in San Francisco.  A San Francisco start-up company called PracticeFusion has signed a deal with Google to offer physicians and medical groups a free Web-based medical records system funded by advertising.  {Brant Ward/San Francisco Chronicle}3/15/07 Ran on: 03-16-2007  Practice Fusion CEO Ryan Howard shows off his company's Web site at an Internet cafe. Photo: Brant Ward