The Variables of 'Like'

Back in 2006, Mentos became an early leader among brands in social media when it capitalized on two performance artists posting videos of what happens when you put the candy in Diet Coke. (Explosions.) After the resulting YouTube viral phenomenon, Mentos embraced the creators and rode a wave of viral buzz while Coke issued a dour statement that it wasn't amused. Fast-forward to 2010. Coke now ranks as the third most popular brand on Facebook with 11.3 million fans. Mentos, as of March, had only 10,000 fans. But then its agency, Isobar, in an effort to play catch-up, paired a two-for-one offer with a pricey reach block on Facebook -- it can cost over $500,000 to reach every Facebook user for a day -- and Mentos saw its number of fans grow to 120,000 in a single day. Brands that are only now establishing themselves on Facebook are playing a desperate game of catch-up.