According to a note this morning from Goldman Sachs analyst Heather Bellini, ComScore data shows that U.S. mobile Internet usage from both browsers and apps rose 4% month-over month in August to 90 million, while average daily visitors were up 6% month-over-month to 52 million and average minutes per visitor were up 3% to 517.
But total minutes spent by U.S. Facebook users overal fell 5% from July to 108 billion, as desktop minutes dropped 13% to 61 billion, compared to flat growth in July and a 1% rise in August 2011. Mobile is now 43% of total minutes, up from 38% just three months ago.
On a global desktop basis, uniques were up 9% year-over-year but down 2% month-over-month, while minutes per user were up 2% year-over-year and down 5% month-over-month.
The issue for Facebook remains the same: they need to figure out how to monetize the service on mobile devices.
FB is up 7 cents, to $20.69.
