As the real world's real-estate bubble pops, a virtual one continues to inflate. Cruise.co.uk, a British travel agent, has paid $1.1 million for the domain name cruises.co.uk. An exorbitant sum to let pasty Englishmen know they are able to purchase more than one cruise at a time. The second domain is to be used for a "social network," Cruise.co.uk's PR agency claims.