1. ACORN [A Classification of Residential Neighborhoods], 2003. Neighborhood Segmentation System. ESRI Business Information Solutions, Redlands, CA
2. The multiple dimensions of the digital divide: more than the technology `haves' and `have nots';Bertot;Government Information Quarterly,2003
3. Customer targeting, geodemographics and lifestyle approaches;Birkin,1995
4. Spatial analysis in retail site location;Birkin,1996
5. Borland, J., 2002. Behind the broadband access fight. Cnet. Available from