maybe two versions, one with just the letter as it is. And one where each link has its own page. Then people can add comments on the links and post related stuff... It might take a while before it seems useful, but after a while it can be a really good resource for. Another idea, is to contact original authors of the linked articles and see if you can "republish" the texts in a more pure text way, so it becomes more terminal friendly.

I really enjoy the newsletter as it is, keep up the good work!