There's nothing wrong with giving yourself a little self promotion or an occasional pat on the back. Most of us do it at some time or another, and with good reason. Some of us have careers that require us to "promote" a little more than normal (i.e. radio, TV, media people, to name a few). But then there are others who just can't seem to stop, those who go way over the top. There's an old saying that says something along the lines of, "if you really ARE something, you don't have to state it". What you do speaks for itself.