Just wondering are there any "free" charting websites or programs which show you the "minute by minute" trading of a share. Seems most have daily, weekly, monthly, yearly so on so on but if you want to trade on instant fluctuations say perhaps you are watching a 5 minute chart - are there any sites or recommendations? I understand you can hit the refresh button but I would prefer a site which will instantly up date a line chart as it trades....?