Everyone should have received an invite to join the Google Group if you're not part of it already. If you have no idea what I'm talking about, please read Communicating in this Course [2].
Once you have joined, introduce yourself to your fellow course participants! Feel free to respond to each other if you find something you have in common or have questions. Anyone may post to the Google Group once they have joined.
Please feel free to ping me directly with any questions -- though I encourage you to use the Google Group for those as many may have the same questions.