I am an absolute fan of all weekly emails. Peters are excellent and I would highly recommend signing up for each of them. I also run a weekly newsletter called Web Design Weekly which might be worth a look... http://web-design-weekly.com :D
I highly recommend subscribing to this newsletter. I've been receiving it for a few months months now and it's been really good. The curators are well aware of the latest developments in the community and it shows. The articles highlight the important bits. It's really nice and useful.