It's funny - I know people who think Facebook is ultra narcissistic - who cares what you did today, etc? But I don't agree with that. Facebook is a giant interaction among a whole bunch of people, with constant give and take. But this blogging thing...I feel like, with just me writing, how dare I expect people to give a sh*t? Lol! But there must be something to this, because obviously the phenomenon of blogging has taken off in a huge way.
One good thing about this form, for me anyway, is getting used to writing regularly in the public arena. It's crucial for me, with my OCD, to get used to the whole mentality of "Just Do It" (thank you, Nike) without worrying about it being perfect.