Remove the phrase "check out" from your marketing vocabulary altogether. It is vapid, lazy and useless (sorry but really). Think: when's the last time you "checked out" anything on command? Riiiiight. Instead, grab an active verb that better defines the call to action you intend. It can be as simple as: "Learn more." Or more complex, like: "Get ready to have your mind BLOWN." Passive-aggressive also works, as in: "Read this RE: our political conversation at Thanksgiving." Dig? Your readers and click-through rates will thank you.