The Mere Bones of Latin According to the Thought and System of Reginald
firstthings.com
firstthings.com
It's meant to be just the first in a series of five volumes.
I think an EV is a waste of time to start using now, but that wasn't always the case, and once you're in the habit of renewing one, it's probably easier to continue than to switch to a different cert, especially because downgrading would lead some users to question why the EV was removed from their browser. The financial cost of an EV isn't a factor for organizations beyond a certain size.