NOAA/ESRL/PSD Catalog http://esrl.noaa.gov/psd/thredds/catalog/Datasets/cpcsoil/catalog.html

Dataset Size Last Modified
     Folder  cpcsoil   --
         landmask.nc 524.5 Kbytes 2010-11-09T14:39:29Z
         landperc.nc 1.042 Mbytes 2010-11-09T14:39:25Z
         soilw.mon.1981-2010.ltm.v2.nc 18.66 Mbytes 2011-08-31T15:56:13Z
         soilw.mon.ltm.v2.nc 18.66 Mbytes 2011-08-31T15:56:13Z
         soilw.mon.mean.nc 406.4 Mbytes 2013-05-17T21:38:22Z
         soilw.mon.mean.v2.nc 406.4 Mbytes 2013-05-17T21:38:22Z

NOAA/ESRL/PSD at NOAA ESRL PSD see Info
THREDDS Data Server [Version 4.3.15 - 20121218.1126] Documentation