Spelling Bee of Canada - Official site
Ask Oxford.com - Oxford Dictionaries, Passionate about language
Scripps National Spelling Bee - U.S. Official site

Try some Puzzles and Word Games at TVOKids.com
These games and activities strike a balance between the engagement of your child in a
playful environment and the presence of solid content based on the Ontario Curriculum.

Visit TVOntario's Independent Learning Centre
It provides a wide range of distance education courses, in English and in French,
for Ontario residents who want to earn Ministry of Education high school diploma credits,
upgrade basic skills, or study for personal development.

Try more word games at Merriam-Webster.com