The "Love Boat". We took their Alaskan Inner Passage cruise and enjoyed it.
Royal Caribbean Still our pick as the best. We're happy customers! (and stockholders) Now sailing from Galveston, TX too!
Captain Cook Cruises
Australian specializing in Australia, Great Barrier Reef, Fiji
Carnival Cruises Very popular with the younger, partying crowd I hear.
Celebrity Cruises Celebrity is a subsidary of Royal Caribbean.
Delta Queen If you're nostalgic for a paddle wheeler, or not ready for the ocean this WAS another option!
Norwegian Cruise Lines A long time company.
Windstar Luxury for sailing enthusiasts.
Cruise Lines International Association
Lots of information and links.
Porthole Magazine A national, bimonthly consumer cruise and travel magazine.
Center for Disease Control Traveler's Advisories Do check out the "Advisories", "Vessel Sanitation Program (VSP)", "What's New", and the "Green Sheets" from the CDC.