What is the easiest way to do this? I would like to be able to post (automatically) calendar information from our Confernece room calendars to a Public folder.Is that possible?

When you said automatically, do you mean that you want to sync the calendar between conference room mailboxes and public calendar folder in the real time? Per my knowledge, theres no method to accomplish this function in the exchange 2007 natively (I assume thats an exchange 2007 environment, please correct me if Ive misunderstood it) After searched on the web, I found tools that may work for you. But they are from 3rd party, theres no guarantee for the results Synchronizing Exchange Mailboxes and Public Folders GroupCalendar for Exchange If you just want to copy calendar to the public folder, we can use Export-Mailbox cmdlet to copy all calendar items from conference mailboxes to one place, and then manually move the items to public folder. The articles below will help: Export-Mailbox Exchange Server 2007 Export Mailbox task