Usenet Groups
If you can't reach the newsgroup by the above link, then go to <http://www.dejanews.com> and search
for your desired newsgroup. If you know more newsgroups out there, please
tell me about them!
alt.history.ocean-liners.titanic
Despite the title, discussion of all liners is welcome, and the invitation
extends to Zeppelins as well.
alt.history.ocean-liners
Topics of discussion are the same as the list above, but less active
and focused more on passenger ships in general.
rec.travel.cruises
Looking for news on cruise travel? Here's the place!