A common and interactive means of Kubernetes contributors working together is by using online chat channels at Slack. Kubernetes hosts a large number of interactive channels dedicated to SIGs, working groups, and projects within Kubernetes. Anyone may join, and you can sign up for access at http://slack.k8s.io.
If you are new to Slack or Kubernetes, then the channels #kubernetes-users and #kubernetes-novices may be of particular interest. The overall community team also hosts what they call office hours, which is a live stream hosted on YouTube, as well as the Slack channel, #office-hours.
