I've always liked Trent Hamm's tagline: "All I care about is making your life not suck." This is what good bloggers, and good people of all kinds, do well. If you're trying to figure out the next step for your blog... or your life... think about how you can make other people's lives not suck.
Taking action on it will probably make you happier, too.
A couple people have suggested that the phrasing of Trent's motto is poor. Can't you make it more positive? they ask.