SharePoint Server 2010 Managed Metadata Features
SharePoint provides enterprise-level management of metadata information, keywords & content types.
Centrally manage and share your keywords across multiple SharePoint websites and site collections. You can also share content types across websites and site collections using the Managed Metadata service.
New keyword additions
SharePoint Server 2010 allows you to predefine key terms, and allows you to authorize users to add new terms. You can also prohibit users from adding their own enterprise keywords to items, and require them to use existing enterprise keywords.
Multiple site collections
SharePoint Server 2010 allows your business to have multiple site collections for managing data, while using common content types and metadata, giving you unified search and retention across the entire organization.
Server 2010 Digital Assets Management
SharePoint Server 2010 Records Management Features