Google Cloud Pub/Sub
This article is a stub. You can help the IndieWeb wiki by expanding it.
Google Cloud PubSub is a new messaging service by Google, in the vein of Amazon SQS, RabbitMQ, Celery, etc. http://googlecloudplatform.blogspot.com/2015/03/using-Google-Cloud-pubsub-to-Connect-applications-and-data-streams.html