This site is maintained by military historian Paul Reed. it provides free access to factual information about the Somme battlefields. This includes brief histories of all the main villages on the 1916 Somme battlefield with historic and modern photographs, lists and images of all the main Somme battlefield memorials, graveyards and cementaries . The site also contains some oral histories of some World war one soldiers, plus details of commercial research services offered by the author. http://www.somme-1916.com/
Its a good book and has now gone into second edition, he has a new one out now walking the Normandy Beaches