I am looking for a good way to be able to have a shared company-wide category system for my contacts to be able to generate contact lists (like "clients" or "volunteers) for specific e/mailing campaigns. Often our contacts fit into more than one category, so I can't just have them reside in different places. I need more of a tagging system. In outlook, you can assign a multiple categories to a contact record...but those categories aren't shared across the entire company. The right solution would have to integrate into Outlook, as it is our primary, day-to-day email solution. Is there a good solution out there for this?