Hootsuite has done something so simple, so elegant and oh so powerful (in my mind), that I really do believe it to be revolutionary. They have brought advanced social media marketing to the masses. When I work with my clients, advising them on how to post, what to post - the day part of posting is essential. They have automated this major step. I'm assuming that the act of automating will make the time the post is distributed better. That has yet to be seen, but if they can pull it off - BOOM. Game changer.