While one of the beautiful things about the Global Read Aloud is that there is no right way to connect, there are a few more official channels that will help you get started and connected.
This website is the hub of big announcements and hopefully where you can get a feel for the project.
On Edmodo, teachers can find their groups to connect with other teachers and share ideas, set up connections, and reach out for help. To see all groups for 2017, go here.
On Facebook for another way to connect.
On Twitter, follow the hashtag #GRA17 (note it changes every year with the year added).
On Pinterest to see press and projects that have been created.
On WriteABout to have a shared writing community.