I was doing a little search engine research on the word "blogging", and I was pretty suprised to notice that according to Overture there were 120 searches for "fired for blogging" in April of 2005.
Don't believe me? Check for yourself: http://inventory.overture.com/d/searchinventory/suggestion/
Once I thought about it a little I was amused. I am an independant contractor for a variety of reasons including my desire to be free from concerns like this.