So why do you blog? Why do you spend so much time writing away to make - if you're lucky - a $1 a day? According to the latest Pew Internet survey, 77% of people blog  to express themselves creatively rather than for fame or fortune, while 7% of people blog to mostly make money. Rather than focus on the 77% who blog simply because they can, I'm curious about the 7% looking to put some cash in their jeans. These people must be very optimistic or naive because the blogosphere is a beast with plenty of content chasing far too few advertising dollars. Sure, you can make a few bucks a day using Google AdSense if you're really lucky or if you're really, really lucky and quite famous, John Battelle might ask you to join his Federated Media empire. But for the vast, vast majority (99.99%+), there's little or no money in blogging. So why do it? Well, if you like to write and feel the need to express an opinion, rant, provide insight, build your brand, learn or just talk about the weather, the barriers are almost non-existent. So blog away. It doesn't mean you'll be famous or make a fortune (let alone a $1 a day) but as Sheryl Crow sang "If it makes you happy, it can't be that bad". For more on Pew and blogging for cash, check out Publishing 2.0 and Reuters.