Jupiter Research, the worldwide authority on Internet commerce, estimates that 6.3 million US residents will spend more than 50 per cent of their holiday budget online this year - an increase of 294 per cent from 1999 when only 1.6 million spent the majority of their budget shopping online. And Media Metrix today revealed a 12-month audience measurement trend showing that the proportion of visitors to shopping sites throughout 2000 already resembles the holiday season of 1999.