For those unable to get to Avebury as often as they might like, this is a useful tool for exploring the Henge -
http://maps.google.co.uk/?ie=U[...]AHaOxg00w&cbp=12,206.68,,0,4.7
Introducing modern and antiquarian writings on Avebury and its environs. Examining conservation and related issues for this World Heritage Site Together with recommendations on accommodation, pubs, restaurants, walks and other places of interest within the Avebury area