We recently launched our Newsletter at Ura covering only Open Source Design stuff, have a look at the first edition:
Since Ura was founded, we always wanted to do a Newsletter but never got around it. We aim this to be a monthly recap of what we have been doing. We are currently using Tinyletter for this, but hope to switch to phpList once the content creation process is solid.
You can subscribe to the newsletter and await a fresh new edition after FOSDEM, covering latter as well: