Mine is also in my siggy: http://www.wishingonasnowflake.com. It's about embryo adoption and infertility. I originally was just going to stay anonymous and only share with strangers on the internet, but I've since sent people I know to it so they can understand more about embryo adoption and our situation. It's complicated and can be hard to explain, so I find it's the easiest way.
I'm so glad I started blogging! It's cheap therapy! Good luck. :)