"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.

Three of the leading advisory services that focus on the natural resource sector have reaffirmed their bullish posture on silver and issued buy recommendations on their favorite silver stocks.

Mary Anne and Pamela Aden, editors of The Aden Forecast, outline their expected path for the metals: "Technically, silver looks good. It's next resistance is at $14.06 basis March. If it rises and stays above that level, silver could then quickly move up to $14.88, its May high."

They note that silver will remain very strong within its longer term uptrend as long as it remains above the $12.75 level. Meanwhile, they offer a pair of favorite silver stocks - Silver Standard Resources Inc. (NASDAQ: SSRI) and Pan American Silver Corp. (NASDAQ: PAAS).

Each year Steven Halpern, editor of TheStockAdvisors.com, surveys the leading financial newsletter advisors asking for their favorite stocks for the coming year. This article is part of his 24th annual Top Picks Report.

Resources expert Mary Anne Aden, turns to silver for both her favorites for 2007 -- selecting the exchange-traded fund iShares Silver Trust (ASE: SLV) as her conservative investment and Silver Standard Resources (NASDAQ: SSRI) as her top speculation.

In The Aden Forecast she explains, "In recent years, commodities have been rising strongly and this boom is expected to continue in the years ahead. Why? China and other emerging nations have been buying on a grand scale, and it's not only commodities.

"As these countries build and grow, demand has increased sharply for oil, other raw materials, and metals. The strongest commodity has been silver. It's consistently outperformed nearly every other investment, and with reason. More silver is being used than is being produced and it's headed for a world shortage.

"That makes silver a top pick for 2007, and an easy way to profit is to buy the silver ETF, iShares Silver Trust. The best silver share is Silver Standard Resources. Although higher risk than an ETF, this stock is a good way to benefit from silver's potential, and is my top speculative pick for the coming year."

Each year Steven Halpern, editor of TheStockAdvisors.com, surveys the leading financial newsletter advisors asking for their favorite stocks for the coming year. This article is part of his 24th annual Top Picks Report.

Pamela Anne Aden, turns to gold for both her favorites for 2007 -- selecting the exchange-traded fund streetTracks Gold Trust (NYSE: GLD) as her conservative investment and Market Vectors Gold Miners Trust (ASE: GDX), also an ETF, as her top speculation.

In The Aden Forecast, the resource sector advisor notes, "There are several reasons why the metals and commodities markets are likely headed higher in the upcoming years. Aside from the ongoing demand out of China and other emerging nations, gross financial imbalances are taking their toll too.

"In recent years, the U.S. has gone heavily into debt. At the same time, China has built up the largest cash reserves in the world. The end result is the largest U.S. budget and trade deficits in history, and this has caused the U.S. dollar to fall over the past five years.

"Since gold and the dollar generally move in opposite directions, these imbalances have also been an important factor driving gold higher. This major financial shift is unlikely to be resolved soon. That means gold and gold shares are poised to rise further in 2007.

"One way to take advantage of these trends is buying the gold ETF, streetTracks Gold, which tracks the price of gold bullion and is a conservative way to invest in this market. The ETF for gold shares -- Market Vectors Gold Miners -- which tracks individual gold mining companies, is a more speculative way to play the sector."