What do you mean send them out? Generally, at least in my experience, etiquette experts recommend to let people ask you, or your family members, about registries. Announcing them can indicate that you are making the assumption you'll get a gift, as well as telling them what to get you. What I did was make sure bridesmaids, parents, grandparents, aunts, uncles, etc. knew where I was registered and left it at that.
This could be different for honeymoon registries, though. I'm not all that familiar with them. I understand what they are, but I haven't known anyone IRL that had one. Do they provide you with some sort of announcement? We were given cards to put in with our wedding invitations from our registries, but that's definitely a big-time etiquette faux pas, at least here.
I hope this didn't come across rude, I'm just saying how we do it in NC with normal registries.