I've kept a pretty low profile with my houseblog for a while. I didn't mention it too much to acquaintances or co-workers. Sometimes people from my past would happen upon it and drop me a line, and my family has started to read it a bit more, but otherwise it was mostly strangers reading. Quite a few strangers that have become "blog-friends" I like to say.
Then, blogger forced me to upgrade to the new blogger and I merged my two blogs. My "secret" identity on the neighborhood blogs