Thread:Allenallenallen333/@comment-4622249-20130623082947/@comment-3499785-20130623084215

File >> Link

or

File >> Append

Link: Object still resides in the original file. They are just linked. If you change the targeted  original file, the object will also change in this new Blend file.

Append: Combine the objects and create a local copy of the object so this Blend file won't be affected if the original file is deleted or changed.