Brandon Badger (https://plus.google.com/114800310452543164210) is the Project Manager. He's been running contests on Google+; submit artwork relating to ingress, stories, etc. hashtag them #ingress, and if he like it he'll reshare it and give you some invites.

I didn't even know about the contest when I wrote https://plus.google.com/110847385311561387629/posts/ePGPdJCS..., but apparently it got to him anyway and he gave me some.

Check out his feed for examples of the things he's reshared.