iA Writer - Minimal Design, Maximum Focus

X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.

MacDown - MacDown is an open source Markdown editor for OS X, released under the MIT License.

Vingle - Mingle with people who share your interests

MWeb - Pro Markdown writing, note taking and static blog generator

Reddit - Reddit gives you the best of the internet in one place. Get a constantly updating feed of breaking news, fun stories, pics, memes, and videos just for you.