though correct, assume that the recipient is not someone else on an internal mail system...
You refer to "colleagues"... If you all have access to the same networks drives it may well be that attaching the link will be sufficient. It will be similar to posting an address to a website on this forum, but the address will be to the file/folder in question...
eg I often have to email collegues something on the "N" drive at work. We all have access to this drive so I just email a link to it.
This of course does bring the possibility of several people potentially changing the same thing, so you may want to consider making the item "read only" if you do choose this!
Hope this help,