I am using TDameritrade. Sure I can get after hour quotes, but where do I get after hour charts? I need 1 minute or 5 minute charts. I remember that quotetracker can chart after hour, but isn't quotetracker down already?
You need to download and install the thinkorswim desktop software, then make sure to right click on the chart and go to style->settings and you can choose whether or not to "show extended session" and whether you want to highlight it or not for each security type.
TDAmeritrade's Streamer and Command Center will show after hours charts. The iPhone app will, too, but only through 6:30pm.