BuzzCity said its quarterly Global Mobile Advertising Index showed that the global recession is having little to no effect on mobile advertisers or user habits.
In the first three months of 2009, the BuzzCity Advertising Network delivered 8.5 billion paid advertising banners, an increase of 11% over the previous quarter.
Growth and usage of the mobile internet in the first quarter was particularly strong in China (67%), UK (54%), US (38%) and Indonesia (23%).