Write quality content, research your keywords and network/interact with online communities. Work on building a name for yourself so that you develop a fan base, and keep your ideas fresh and informative to cater to new audiences -- that's it folks.
Oh, and a great deal of patience. I'm guessing 99% of people quit before the 1million views mark, but remember that growth is exponential on here! Getting to 1 million may take a year, but the next million will take a couple of months -- and so on.