This section contains several interesting links to Internet sites with information on photovoltaics. The sites are grouped in four categories:

• IEA sites
  includes links to the International Energy Agency (IEA), other IEA Implementing Agreements and IEA PVPS Annexes;

• International organizations
  include links to international organizations that are active in the field of photovoltaics;

• Web resources
  include sites of publishers and libraries, sites featuring databases, articles published in journals and books. Also internet forums are listed in this section.

• National organizations
  include links to sites of national organizations active in the field of photovoltaics, grouped per country.