Maximum PC

Is there a way in Outlook 2010 that I can create a new calendar, and share ONLY that calendar with others. I have two other calendars (Personal and Work) that I don't want to share. The new calendar would be a Marketing calendar, and I only want THAT calendar shared with Marketing personnel, not all of my calendars.

This seems to be harder than it needs to be since whenever I set up the permissions, I can only do it for my personal calendars (Which I don't want to share) or for all calendars I have (which I don't really want to do either). Just the Marketing calendar.

Have no idea how to do it in outlook, but you could sinc your callender to google and let it share only the one you want.

Are you working in an Exchange environment?
If you are, you might find it easier to create a new Exchange user (say, call him "MarketingCalendar" (and, set the account to 'disabled'), and share 'his' calendar out.
(This is how I created a "Home Calendar" at home - it was the easiest way to create a calendar that everyone at home had access to, without creating weirdness with my own calendar.)

*Edit:
Just remembered that what I did was to create a "room calendar." That automagically sets the user account (that "owns" the calendar) to 'disabled', but leaves the calendar live.