123Quiz.net Save
Organises open quiz events, lists quiz leagues and pub quizzes.
http://123quiz.net/   

British Othello Federation Save
Independent body organising tournaments around the country and promoting the game of Othello.
http://www.britishothello.org.uk/   

BuzzerQuiz Save
Open and student quiz competitions in the UK, including the Championship Series and the British Student Quiz Championships. Matches closely resemble University Challenge / College Bowl.
http://www.buzzerquiz.com/   

Mind Sports Olympiad Save
Organisation based in London that provides an event for lovers of games and mind sports to battle for prizes.
http://www.msoworld.com/   

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