Cruise.co.uk has had more than five million visitors in the last year, up 29%.
The figures, for the 12 months to June 2010, make the site the largest source of cruise knowledge in the UK, according to managing director Seamus Conlon.
“People have spent nearly 600,000 hours researching cruising on our site in the last 12 months,” he said.
“Cruisers probably spend more time researching cruising on our site than all the cruise conversations that cruisers have with all the travel agents in the UK combined.
“The reviews and opinions by cruisers on our site have a huge impact on the perceptions of cruise line brands.”
The site now holds more than 78,000 reviews and opinions and 134,000 cruise questions and answers.