Thank you csonnek, I will look into Australian laws - we are pretty tight when it comes to competitions and I've noticed that most australian companies use social media as a launch pad for a "in 25 words or less" style comp. It hadn't occurred to me that they may be doing this to work around the law.
Timethief if these campaigns are bribery - Every competition is bribery. Why would any company give away something for free if it didn't serve their own purpose in one way or another? Canada's law is more likely due to gambling regulations, or controlling corruption and not because they consider it "bribery." There have been a couple of quite famous campaigns where the winner has miraculously been their next-door-neighbour. This is (aside from immoral) unfair to the people who invested the (albeit small) time to enter the competition.
To everyone else; The purpose of the competition is to get the name of my esty store out and into the feeds of people who otherwise wouldn't be reading my blog. No promotional material would be sent, or even blogged about (save for new releases announced). Not much credit is being given to the intelligence of the readers here; if they don't like they content they can (and will) remove themselves from the subscription.
Raincoaster; yes, wasn't talking about that at all but on a side note; I've never liked a competition to find my inbox full of promo-material the next day.