What is a honourable website to memorize more almost agility training?

I'm interested in training my 2 year old golden retriever to do agility. He is incredibly active and strong. Any accurate website ideas?

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http://cleanrun.com/

Or just Google Dog Agility

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this sites great its got a forum, important information just about competing and training ideas, links to other agility and dog related sites and loads more
http://www.agilitybits.co.uk/

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Answers:    akc.org

nadac agility

cpe agility

usdaa agility

http://www.jandemellobordercollie.com

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i looked on google

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