So, with the permission of Ken, some links to sites about International Quizzing.
The IQA (International Quizzing Association) has organised World and European Championships for the last 3 years now.
The World Championships is an individual event. On the European Championships there are individual, pairs, teams and country events.
Questions of the first European Championships for country teams (of 4): Belgium - UK in 2003: http://www.iqa.be/intvra2.htm
Questions of the first European Championships team event (2003): http://www.iqa.be/intvra1.htm
Site of the Belgium branch of the IQA (bilingual Dutch - English): http://www.iqa.be/
Site of the UK branch of the IQA (with forum): http://www.iqagb.co.uk/trivia/portal.php
International Quiz Forum (with news on quizzing in several countries): http://quizzing.myfreeforum.org/index.php
(It's just started, about the same day as this forum so it's still in build-up really)
Site of the European Championship in December 2006 in Paris: http://www.eqc2006.com/
Any questions? Please ask.