Google Earth is clearly the undisputed king of online mapping software but it does lack a little when it comes to areas of rural England. My village in the countryside, for instance, is just a green blur as seen from a satellite.
Enter Microsoft's Virtual Earth. The level of detail for rural areas is much better though the the images themselves seem to be a fair bit older than Google Earth. You pays your money and takes your choice.
All of which is a rambling introduction to an aerial view of the festival site, as seen at a point other than during festival time:
http://local.live.com/default.aspx?v=2&cp=51.152553~-2.581894&style=h&lvl=15&tilt=-90&dir=0&alt=-1000&encType=1
If you do have Google Earth, I also recommend finding the same place on the map and downloading one of the overlays that someone has created. They've put the festival itself on there and it looks very impressive.
