Stickers are essentially mini-posters, and advertisers have been using them for decades to get the word out without technically breaking the law. They hand them out to teams who then go out and plaster them over public buildings, bus stops and street signs. When the authorities complain, they say “oh, we only gave them to our customers. We have no control over where they put them.”
Firstly, a disclaimer – don’t spam Reddit and other similar sites hoping to “hit the jackpot” of referral traffic, because it’s not going to happen. Members of communities like Reddit are extraordinarily savvy to spam disguised as legitimate links, but every now and again, it doesn’t hurt to submit links that these audiences will find genuinely useful. Choose a relevant subreddit, submit your content, then watch the traffic pour in.
Nice work Laura! This is going to be a great series. I'm working my way through SEOmoz's Advanced SEO Training Series (videos) Vol. 1 & 2 to build upon the advice and guidance that you and your team provided to me during my time at Yahoo!. Now many others will benefit from your knowledge, experience and passion for SEO strategy and tactics. Best wishes for great success in your new role.