The National Writing Project (NWP) has a community open to anyone who is interested in writing. If you teach writing, you should consider joining this community. They also have a "Twibe" (for sharing tweets) that you can use to disseminate tweets on the topic of writing. They've always been on the forefront of writing and research. Great organization and some great conversations about common core as well.
via Diigo http://connect.nwp.org/national