For more on Ingress, I thought Tim Bray's blog posts about Ingress were always good reads. <a href="https://www.tbray.org/ongoing/" rel="nofollow">https://www.tbray.org/ongoing/</a> (search for Ingress)<p>If you find this sort of thing interesting, I'd also recommend checking out Empires of Eve (<a href="https://www.empiresofeve.com/" rel="nofollow">https://www.empiresofeve.com/</a>) about experiences in Eve Online. I played Eve for several years (including during the period covered in the book) and thought this was a well written 'history book' about what happened then.