Like the name implies, CruiseOnly.com is dedicated to cruises only. This would be an asset if a cruise vacation was all you ever needed, but most cruise services we reviewed focus on both cruises and supporting services, such as airfare, excursions and hotels. CruiseOnly.com is a good place to just find and book a cruise solo, but we feel cruise site should offer customers a broader range of services before they can be considered cruise specialists.

CruiseOnly.com offers search tools capable of finding and sorting vacation packages by destination, departure port, inland cruise ports, date, length, cruise line and ships.

CruiseOnly.com makes the booking process efficient by requiring just a few booking pages. Typing fields and drop-down menus make the process simple to follow, and a guide on the booking page shows you how much further you have to go until booking is complete. If this sounds familiar, it's because CruiseOnly.com uses a booking process identical to Wal-Mart Vacations.

We found some cruise packages that require you to call customer service before continuing the booking process. This is inconvenient, especially if you don't have a phone nearby (such as when you're in a library or Internet caf