There are many confounding reasons why you should be adding silver to your portfolio these days. The major reason of course, is the state of the global economy. The currency markets right now are fluctuating wildly, and are having an adverse effect on the economy.
One day the US dollar is down and the Euro is rising. The next day, fears over debt in Europe send the Euro down and the dollar higher. It is indeed a roller coaster. One asset that has done well in the face of this storm is precious metals, specifically silver. It is still the most affordable of all precious metals. It is very easy to get started. All you need to do begin adding silver bullion coins, then when you have a sufficient amount, begin adding bars in increasing size.