I thought I'd keep an entry of any useful websites I've found for my upcoming refight
Maps of the Battlefield circa 1914 useful for the topography (just ignore the railways)
Lieberwolkwitz - the main map covering the southern flank
Naunhoff - east of Liederwolkwitz
Pehritzsch - northeast of Liederwolkwitz
Note the codes, the first two digits are northing and second the easting to find more maps search "MTBL nnee"