I find that most of the successful blogs out there seem to adhere to some sort of theme.  People brand themselves as an expert in a subject, or at least stick to writing about a specific topic, and those interested in that particular area come and read about their opinions, thoughts, ideas, etc.  For me, however, something like that doesn’t quite work.  I’ve got too many interests to just focus in one area (and not enough time to create separate blogs for each!).  I’ve always liked my theme to just be me.  All my interests, all the experiences in my life, all the random things that go through my mind.  I guess it’s a good thing I’m not out to be a professional blogger!