"A once in a lifetime super bull market in commodities is underway," note resource experts Mary Anne and Pamela Aden. Here, the advisors look at some favorite commodity stocks in their The Aden Forecast.

"Commodities are in a mega super rise is because of the dramatic changes in the global economy. The rise that started in commodities in 2001 has continued to expand over the years and we believe the upmove is just warming up and it has years to run.

"There are several reasons for this. The weakening dollar and low interest rates have certainly helped push up the whole sector while investment demand grew as an inflation hedge. But the key reason why the commodities are in a mega super rise is because of the dramatic changes in the global economy.

"Keep your gold for the long-term; it's today's best investment," says Mary Anne and Pamela Aden in The Aden Forecast. "Despite normal ups and downs, we strongly believe you'll be glad that you held hold onto your gold."

"Gold, silver and most of the gold shares are about the only markets to show gains so far this year. Everything else is down, and in many cases down sharply. Gold has recently been hitting new, or multi-year highs against the euro, the Dow Industrials, bonds and oil.

"In other words, it's stronger than these other markets. Gold is outperforming them and the percentage gains are greater in gold compared to all of the other markets.

"Simply put, gold is where you want to be. Silver is good too. These are the best markets. That's why we've consistently stressed keeping a large part of your investments in gold, silver and their shares.