Nearly everybody keeps a phone within reach for every waking hour, and Elizabeth Redd builds a whole argument for mobile advertising on that single fact. The advice that follows concerns exclusivity: give the people who reach you on a phone something the rest cannot get, because otherwise the channel is only a smaller screen.
Her email posts contain the best test on the blog. Read every message you send as though somebody else wrote it, and if you cannot finish it, nobody else will either.
Facebook gets treated as a shop front. A page that looks neglected fails the way a badly kept shop fails, and putting your own face on it matters, because nobody browses a store where the staff wear paper bags.
One post steps away from tactics entirely to argue that money is not the point of doing any of this, and another simply lists what she listens to.
Read the email post before you write your next one. It takes five minutes and will probably change it.