The intended audience is the clever Englishman (or American/Aussie/Kiwi/Canadian - I mean native English speaker)
who wishes to teach himself the language with online resources.
This site is NOT a ground-up course, but rather teaches discrete units of grammar
(it will aim to teach little or no vocabulary).
Therefore the audience in intended to be he who wishes
to refer to this site on and off during his studies, as an accompaniment to a
or to supplement a teacher's lessons.