See the below links for info and agencies/people who are recognizing the day through events, writing, etc.
(Canadian Resource with listings for events happening for Overdose Awareness Day in Canada)
(Ontario Harm Reduction Distribution - Articles, videos, About the day)
(Website specific for the day - Find info, pay tribute to someone who died from overdose)
http://drugpolicy.ca/2012/08/overdose/ (American resource and links)
http://injectingadvice.com/ (Safer Injecting Advice, video's, interviews - cool - Canadian?)
(see their Overdose Awareness workshop)