The title of this thread made me think of James Patterson, who has his name on something like 20 books a year.
There's a quote from the TV show Castle
(which I'm apparently obsessed with as this is my 3rd or 4th mention of the show in the last week on the Colony) that aptly describes his publishing record: Patterson calls and says he's going to be late for a poker game and Castle says "he probably wants to use the time to write another book."
In any case, interesting points in that article. I also use Buffer to post my social media things. Easier than having to remember to post something every day.