I was measuring out a property today, it was very big with lots of sections. Anyways I came home and realized that i forgot to measure one of the biggest sections, I didn't want to go all the way back....so: I went online and downloaded a free program called Google Earth, I found the property on the globe (took some work) zoomed right in, then I used the measuring tool and mesured it from my own home. This is awesome, it is a satalite image of the earth, you can navigate areas, zoom in quite close, measure properties or even your enitre route. I found my house and measured the front lawn online, then went out and measured it with a tape measure and I was within a 1/2 meter. The images are probably two years old though, so new development may not show yet. Have fun, I did.