I've been thinking about putting out a newsletter.
For me a newsletter should be short and snappy, giving readers a glimpse of your latest content and entice them to click through to the content that appeals to them... being inundated and trying to sift through lengthy content is a good way to get your subscribers to unsubscibe...
I can't tell you how many I've unsubscibed to because I was getting notifications daily from creators with stuff I had no interest in.
If only they had sent me a bi-weekly newsletter with summaries so that I could chose for myself, I would still be a subscriber...