Which cruise ships have Wi-Fi?

Gone are the days when friends and family could expect a postcard to arrive from you aboard your cruise ships two weeks after you actually got home. Well I say gone, if we left it up to Royal Mail it still might take that long. Fortunately, these days we're all pretty much firmly plugged into the world wide web so it's getting more and more important for people to be able to access their emails, Twitter and Facebook accounts whilst aboard their cruise ship.
In regards to this a few of my passengers have been asking me who provides wi-fi at sea for their laptops so if you check below you'll find a quick and handy guide to use showing who provides what and where. If you have any more questions about it feel free to email me.