I'm going through Gary's recommendation of books and salesletters. (I'm sorry I can't link to the specific threads yet!)

Can anyone recommend any material on a similar note that I can use to learn Email Copy?

I am writing out full salesletters - a fun hobby in it's own right
with many rewards. But I'd also like to learn how to write effective
email copy (modern day) - the main difference being, they are
shorter in length, and written like this.

Any good emailing lists I can join to learn, or books/courses I should
consider?

Thanks - Kim