Yeah, I remember coming across this before. The Domesday book is famous as one of the earliest records of England. It's where we get the term "doomsday" from.
http://www.domesdaybook.net/helpfiles/hs520.htm"For further discussion, see J.H. Round, Feudal England (1895); F.W. Maitland, Domesday Book and beyond (1897); Sally P.J. Harvey, 'Taxation and the ploughland in Domesday Book', Domesday Book: a re-assessment, edited by Peter H. Sawyer (1985), pages 86-103; H.B. Clarke, 'The Domesday satellites', ibid., pages 50-70; J.C. Holt, '1086', Domesday studies, edited by J.C. Holt (1987), pages 41-64; Judith A. Green, The government of England under Henry I (1986); and David Roffe, Domesday: the Inquest and the Book (2000)."
http://en.wikipedia.org/wiki/Domesday_Book