Initially, I got rather excited by this infographic that's doing the rounds:
Another great chart to challenge people's preconceptions! Hurrah!
And then I looked at it a bit harder. Social networks and blogs lumped together? That's...not very useful. It implies that people want a significant amount of their content delivered in a social manner, but doesn't give us any clear picture of how relationship-driven that delivery actually is. Hummph.
Luckily, there's more detail in the original blog post, although not enough to really tease apart what's going on here. The mobile use pie chart is worth a squint, though.