Centre for Economic Performance: http://cep.lse.ac.uk
The CEP was established by the Economic and Social Research Council. Based at the London School of Economics and Political Science, it is now one of the leading academic research centres in Europe and a world leader in economic research. Its website provides discussion on causes of countries' and firms' economic performance.

Michael Porter: http://www.isc.hbs.edu/
The official website of the famous professor at Harvard Business School. A comprehensive coverage of his thinking, research studies and publications.

AnnualReports.com: http://www.annualreports.com/
AnnualReports.com offers up-to-date listing of Annual Reports online. Its directory is a free Internet service that will enable potential investors to review a company's annual report in an easy convenient manner.

The UK Competition Commission: http://www.competition-commission.org.uk/
The UK Competition Commission is an independent public body established by the Competition Act 1998. It is set up to conducts in-depth inquiries into mergers, markets and the regulation of the major regulated industries in the UK, undertaken in response to a reference made to it by another authority.

Europages.com: http://www.europages.com
Available in 25 European languages, this is a truly European online resource which contain information on 550,000 companies in the EU.