Links
Software
Manifold GIS - http://www.manifold.net
GeoConcept - http://www.mapmechanics.com/software-products/geoconcept-gis-core-software-options.htm
IBM SPSS - http://www.spss.com/uk
Data
Mapmechanics - http://www.mapmechanics.com/index.htm
Office for National Statistics - http://www.ons.gov.uk
Neighbourhood Statistics - http://www.neighbourhood.statistics.gov.uk/
Maps
Ordnance Survey - http://www.ordnancesurvey.co.uk