4. Bronnen

Search engines:

       -     http://www.google.nl/

       -     http://www.bing.com/

 Lists of popular sports per country:

       United Kingdom
       -    http://www.woodlands-junior.kent.sch.uk/customs/questions/sport.html

       -    http://news.bbc.co.uk/sport

       United States
       -    http://www.usatourist.com/english/inside/sports.html

       -    http://espn.go.com/

       Canada
       -    http://www.tsn.ca/

       -    http://en.wikipedia.org/wiki/Sport_in_Canada

       Australia
       -    http://www.totaltravel.com.au/au/traveller/aussiesports

       -    http://en.wikipedia.org/wiki/Sport_in_Australia ?