Google showcased their involvement with POSSE in a recent post on the opensource.googleblog.com blog: 

This year Google was proud to not only host a workshop at our San Francisco office in April, but also to collaborate with the organizers to bring a POSSE workshop to Europe for the first time.

Find out more about POSSE and apply to join the next workshop (in Raleigh, NC Nov. 16-18): http://foss2serve.org/index.php/POSSE_2017-11