Sharing Content Between Sites

What approach do I need to take to have content available on two Site Collections without having to duplicate the information.  For example:  On the Intranet Site I would like to have our corporate vision, mission and values.  I'd like to have the same information available on our New Employee Onboarding site.  How do I make the information available on both sites without having duplicate copies.  I basically want a single spot to author and then have it publish to the other sites that use it.

 

Thanks in advance for your help.