<--- fancy mustache-twirl, you say?
Love what you're doing. Making grammar something that can easily be learned in 5 minutes or less is bound to help a few kiddies learn how to type properly. Something about it kinda reminded me about the Oatmeal grammar comics. I think they'd be good, too. Comical, yet effective -- it'll catch the eye, entertain the reader, then do a bit of teaching by giving them humor with grammar lessons.
ffect vs e
WTH? There are different types of dashes? you may be asking yourself. And the answer would be yes! The em dash (—), en dash (–), and hyphen (-).
Haha, I actually didn't know this. I just thought of them as two different punctuation marks. Definitely didn't know they had certain names, either. Thumbs-up for that interesting bit of information.