The Photographer's Ephemeris uses a google earth map inside a window. It superimposes lines to sunrise, sunset, moonrise, moonset, and to current sun and moon azimuths at any time, all color coded, on top of the google map. You can also choose the google map presentation among the usual suspects: road map, satellite photo, topographical, etc. In addition the rest of the display shows numerical data including both azimuth and altitude for sun and moon. It also has the ability to quickly change location (with stored user location presets) and date and time. There is also a timeline for a chosen date with forward and reverse arrows that skip to the next solar or lunar event (rise, set, etc). It's a very complete and well integrated tool.
Originally Posted by keithwms