Bob Dylan was once asked in the 1960s "How many protest singers are there today?" -- to which he answered, "about 136." A question that cannot be answered deserves a ridiculous answer. And so it goes with the question "How many keywords should you have in your SEM account?" The answer, in short, is that there is no one answer. Perhaps, however, unlike a protest singer census, we can at least create a reasonable way to infer whether an account is keyword-light or keyword-heavy.