Amazon has a lot of tailwinds blowing in its favor.Amazon (AMZN -0.01%) has been a great performer this year, as it's up more than 20%. However, I believe this is just the start of a much larger move.Amazon's business is starting to transform into something investors have never seen, and that's fantastic news. I've got three facts about Amazon that investors should know. While there are many more reasons to be interested in Amazon stock, I think these combine to make a compelling case to buy right now.1. Am ...