You are welcome to follow GNOME on the following social networks:
Facebook is not recommended as a sole way of following GNOME as Facebook only shows Page posts to a small fraction of followers. To be sure that you have a chance to see all posts from GNOME on Facebook, create an Interests List by following "Add Interests..." link on the left of your timeline and add GNOME and other favorite pages to it. Then periodically check that list.
You are also welcome to add the following feeds to your feed reader:
Planet GNOME - an aggregator for blog posts from GNOME contributors
Or join the community discussion on Google+