How much is one troy ounce of silver worth today?

As i write 21st Dec 2011 the spot price of 1oz of silver is around $19 USD, but silver is very volatile & changes from day to day. In the past twelve months, the price has peaked at around $29 (April 2011) with a low of around $17 (Jan 2011). For more info on silver & gold investment & current prices check the silver & Gold Investment Guide link below.