...I cannot sing the praises of this plugin enough. It has DRAG AND DROP in a calendar view!! Just that feature alone sold me. I have social media marketing scheduled for over a year. It has literally changed the entire way that I promote my website. This is an affiliate link, but if you don't like that sort of thing, the regular link is here at www.coschedule.com
I don't care how you sign up, but please check it out. You get 2 weeks free, and then if you like it they extend your free trial for sharing on social media. They have been incredibly helpful with the few small issues I've had, and it is easy to install and schedule things.