Hi, I like your newsletter concept and I do subscribe to it.
One thing I think may be cool, is put a thumbs up/thumbs down link in the email to track sentiment of the links you share. Some links are really cool, others I am not interested in at all, it may be useful to capture that info.
I would visit a site daily if you expose some of that info publicly (like 49% positive 51% negative for a link), to see how my sentiment matches your wider audience.