Is My Blog Too Negative?

I was wondering as I glanced over some blog entries I have written in the past year. I believe the issues I write about are important.  I have been told that people like my writing style because I have the courage to write about issues the mainstream media often ignores. However, I do wonder is my blog too negative? Am I being pessimistic about the world? Am I being too critical? I wonder? Or should I just ignore certain issues and let other people deal with it?