Hi Joe, welcome to the forums,
For sharing have a look at the
End User Guide, specifically pp. 115 & 206 which describe calendar shares and how to set them up.
If you create public share(s) for the calendar(s) you have several options. The HTML view can easily be embedded in an iframe on another webpage, and the .ics link can be used to 'subscribe' in other applications (e.g. Mozilla Sunbird, MS Outlook etc.).
I hope that gets you started.