Sketch App Sources is the largest source for high-quality Sketch downloads. The site is a collection of plugins, tutorials, tips, articles, UI kits, wireframe kits, templates, icons, and many design resources created by Sketch users around…
It's not a newsletter per se, but it is a really useful email tool. Newsle syncs with Facebook and Linkedin and sends you an email when your friends make the news. (It'll also let you know when you make the news, so it's a nice alternative…