SeaTrek
- Annual science fiction cruises feature Star Trek guests and shore excursions.
- http://www.scifi-cruises.com/

Geek Cruises
- Offers a variety of cruises aboard Holland America ships. Individual topics include graphics, networking, and website design.
- http://www.geekcruises.com/

Home Theater Cruise
- Presentations and panels about the home theater industry aboard Royal Caribbean vessels.
- http://www.hometheatercruise.com/

Residential Vessels
- Timeshare of ocean liner cabins.
- http://www.residentialvessels.com/

Quilter's Alaskan Cruises
- Features quilting cruises to Alaska including the first 'Quilt For A Cure' cruise to raise funds for breast cancer research. Includes itineraries, prices, registration form and contact information.
- http://quiltersalaskancruises.com

Cruise US
- Offers dining,entertainment and special event cruises across the United States. Includes list of approved member, overview and contact information.
- http://www.cruiseus.com

Dance Across The Seas
- Country & Western dance cruise from Fort Lauderdale to Western Caribbean aboard the Grand Princess.
- http://danceacrosstheseas.com

Independent Schools Adventure Cruises
- United Kingdom charity provides educational cruises in the Mediterranean for school children aged 10 to 16.
- http://www.isacruises.org.uk/

Residensea
- Upscale apartment living on an ocean-going luxury resort.
- http://www.residensea.com/

Family Cruises
- Dedicated to family cruises. Over 400 locations.
- http://www.familycruises.com

Murder on The High Seas
- Murder Mystery Cruises from Whodunit Productions in association with Royal Caribbean. Includes upcoming schedule of events, services and amenities included, prices and contact information.
- http://www.whodunitcruises.com/index.html