Most likely to spread
holiday cheer

Elf Yourself

Launched: December 2006 Elves created: 123 million in the 6-week 2007 holiday season

Retail giant Office Max first contracted Toy marketing firm in 2006 to create holiday-themed web sites, with Elf Yourself being the big winner. Starting with one lone elf, it's grown over the 9 holiday seasons to include new elves, dance themes and tunes. When the site is inactive, messages like "The Elves have left the Building!" are displayed.