I have a notebook that I take to the appointments and write info in. At one point I tried to put that all on the computer each time I came home, but now I just leave it in the notebook in the handwritten version.In addition I do have one excel spreadsheet that list all his meds and upcoming appointments with specialists and another that is a medical history of my son listing dates of x-rays, cat scans, tests, etc (since he has more going on that just CF this one is crucial to keep all the doctor's up to date) and I take both of these spreadsheets with me to every doctor's appointment.After each doctor's appointment I file the appointment summaries (printout given by hospital/doctor's office) in a file folder in my desk filed by specialist. Before I go to that specialist again I pull the folder out and review the last visit.I personally do not want to use one of the online services. I know that the Cleveland Clinic offers one and I have received info on other ones through the mail, but at this time I question the safety/security of those.