We wrote down a collection of online resources which could be useful.
Web research and Internet statistics online
UK Office of National Statistics
www.statistics.gov.uk
Office of National Statistics - Internet statistics page
ClickZ Statistics
www.clickz.com/stats/
Internet statistics including demographics; updated monthly - excellent
European government
ec.europa.eu/consumers/rights/e-shopping_en.htm
Search on E-commerce or information society
MORI Technology Tracker
https://www.ipsos.com/ipsos-mori/en-uk/tech-tracker
For Internet adoption statistics choose technology tracker
OECD
www.oecd.org
E-commerce reports and statistics
Ofcomm Telecommunications
https://www.ofcom.org.uk/research-and-data
UK Broadband adoption statistics
Statmarket
www.stat-market.com
Statistics on browsers, plug-ins and search engines used at sites from Hitbox users
E-consultancy Internet Statistics
www.e-consultancy.co.uk
Compilation of UK related statistics
CIA World factbook
www.cia.gov
Basic information about countries and markets
eMarketer web stats
www.emarketer.com
Formerly included an eStats section
Iconocast
www.iconocast.com
ICONOCAST's gives in-depth market research, online advertising and e-commerce reports
Internet.com
www.internet.com/sections/marketing.html
Good collection of articles for professionals (mainly technically oriented)
Yahoo demographics
https://developer.yahoo.com/flurry/docs/analytics/lexicon/demographics/
Internet surveys
AC Nielsen
www.acnielsen.com
Major market researcher, relatively little free information available on UK
Relevant knowledge
www.relevantknowledge.com
Paid for Internet surveys
Hitwise
www.hitwise.com
e-consultancy
www.econsultancy.com
IAB
www.iabuk.net
Brand Republic
www.brandrepublic.com