They say that when your ears are burning someone is talking about your, but when your ears are ringing that is a different issue altogether. That jingling and ringing in your ears is called tinnitus and it is fairly common.
Everyone experiences once in a while for a few minutes at a time, but for a few the buzzing is constant and recurring. It can be caused by a wide variety of things, from ear wax to anxiety, from cranking your iPod to 11 or a middle ear infection. Blood flow problems can also make your ears jingle, buzz, and ring, and tinnitus could be a sign of high blood pressure. If you notice that it persistently happens in only one ear, it could be a sign of an auditory nerve problem and you should visit your doctor.
Take care of your ears since they are the only ear you have. Protect them from loud noises and were ear plugs at rock concerts and don't crank the volume on your iPod either. Don't stick anything smaller than your elbow into your ear canal either. If you experience a constant buzz, you will probably find the website of the American Tinnitus Association web page helpful.