Apparently the cool kids these days are those that don't blog:
Find five completely random blogs, and read them daily for a month. After thirty days, you will absolutely dread your self-imposed requirement to read all that dreck. Any blog you create will most likely be on par with what you've been reading. Don't put anyone through that. [...] Consider that your voice, even if it is truly a good one, is a tiny peep against the massive wave of tripe out there. The odds of anyone you don't already know finding your blog are low.