Topic: National Soil Map
Located at http://www.landis.org.uk/soilscapes/
The site says it's developed by Cranfield University and sponsored by DEFRA so I'm not sure to what extent it represents UK government data.
I just tried to get hold of a GIS layer to attempt to calculate and display an association with the distribution of a dipteran species (relying on Broom we think).
It's the sort of data that could be very useful to botanists or as an overlay on NBN Gateway maps.
No luck, they charge an admin fee of £375
Do any of our agency friends have this or anything similar so that we naturalists who make all our stuff available free of charge are not billed by Universities (or government if it's theirs)
Back on the "Free our data" and "Open Access publishing" trail again - sigh