Efax.com, the upstart competitor of efax.co.uk, may be worrying unduly about its British rival (story: efax.com v. efax.co.uk). Brits flock like sheep to .com addresses -- take a look at Jobworld.co.uk, a long-standing British recruitment site owned by VNU, Britain's biggest IT publishing house, and Jobworld.com. The latter URL, bought last year by IDG, transports customers instantly to JobUniverse, the US firm’s online international recruitment business. How many customers is Jobworld.co.uk losing to Jobworld.com? Will VNU sue IDG? And on what grounds: "We forgot to register the Jobworld.com domain name, and then let IDG snap it up from the previous owner" doesn't have a very compelling lawsuit-winning ring about it. We think we won’t be told. ®