Call me only if it's time-sensitive or if you've scheduled it in advance.
I prefer defaulting to writing publicly. You can contact me on my public groups/pages/website or anywhere on the web: just tag me or send me the URL.
To contact me privately, I'm more likely to reply rapidly and not forget about your request if you communicate by emailing me.
If we work on a project together, I often like to communicate in a Google Doc.
I'm open to trying other forms of communication and other platform, so feel free to share your thoughts on this with me.