Expedia does offer some Disney cruises as part of larger travel packages. The best place to find a full list of Disney cruises will be on Disney Cruises's official site.
The best resource for finding Disney Magic cruises is the official Disney Cruise website. On this site, you'll find available cruises, destinations, rates, and more.
You can find information for European Cruises online via many Travel sites. Alternatively you can call or go to a Travel Agents and they will be able to provide you with all the information you require.
There are many resources online about luxury cruises for seniors. One really good website that you can check out for these cruises is cruisesandseniors.com/
You are going to be able to find information on Disney cruises on (http://disneycruise.disney.go.com/cruises-destinations/packages/). Here you can choose where you're setting sail from, where you're going, date and a variety of packages available for family vacations including hotels and entrance to the parks.
Information about Avalon River cruises can be found online at Avalon Cruise Line. Some information on this site includes cruise dates and contact information.
One could find information about cheap cruises to the Bahamas online on various websites. The most recommended websites are 'Expedia' and 'Directlinecruises'.
Search for Panama Canal Cruises and you'll find a wide array of sites offering information. Take a look at Cruise Critic for reviews on Panama Canal Cruises, and also search on TripAdvisor for further reviews, photos and advise.
Disney Cruises are offered from 3 nights up to 15 nights, and can include a stay at the Walt Disney Resort in Orlando, Florida. Prices can be found on the Disney Cruise website as well as Expedia, Best Price Cruises, Travelocity, and Orbitz.
Cruisecritic.com is a great site to find kid free cruises. Along with finding information on kid free cruises you can also find reviews and great deals.
Many mature travelers enjoy cruise vacations. By searching the web and online forums you can find a lot of information and recommendation on cruises that are of interest to you. One site is cruisecritic.com and seniortravel.about.com.
You can find information on single senior cruises for your grandmother by seeking travel agents who specialize in senior vacation packages. Very few general travel agents or online booking sites offer this service.