Post baby registry on Facebook?

TJ
I am having a baby shower close to home but most of our friends and my entire side of the family are in another state (we moved a year ago). Would it be terribly tacky to post our baby registry links to Facebook for those who won't even be invited to the shower because they are out of state? 
What Is the best way to let others know about the registry if we don't plan to send them shower invites because of this?

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