I have a personal calendar created on my OWA account. Is there a way to make it a public calendar through Exchange 2007?

You can apply permissions to a folder that grants others rights to it. But connecting to such folders through OWA isn't trivial. It's pretty easy through Outlook's File > Open Other User's Folder.Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

I realize I can set permissions but the problem is this person that has these personal calendars is only a temp and will be gone soon. This will mean I will have to give access to these email account to the next person. What I want to do is make this Room Mailbox in Exchange and import the personal calendar into it. Is this possible?

You can export your calendar to a PST and import into the room calendar (use olk).Sukh

Or just open both in Outlook and drag and drop.Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."