A recent Statistics Canada publication looks at ICT use and correlates it to educational and literacy levels. It is based on a survey (using the Adult Literacy and Life Skills Survey) of people in Italy, Canada, USA, Switzerland, Norway and Bermuda .
Veenhof, B., Clermont, Y. and Sciadas, G. (2005). Literacy and digital technologies: linkages and outcomes. Ottawa: Statistics Canada. http://www.statcan.ca/english/research/ 56F0004MIE/56F0004MIE2005012.pdf