"The recent pullback in commodity prices has opened up this window of opportunity," says resources expert Larry Edelson who reaffirms his long-term bullishness on gold.

In his Real Wealth newsletter, he explains, "If you think the slowdown in the U.S. economy is impacting China and other emerging markets - ground zero for the natural resources boom - think again." Here, he discusses his favorite gold plays.

"Not only are the Chinese and Indian economies expected to surge more than 9% this year, countless other economies throughout Asia, the former Soviet states and Latin American countries are also growing by leaps and bounds.

"As long as this massive new demand continues, natural resources and commodities will continue to soar And investors who use temporary pull-backs in this long-term bull market stand to multiply their money - over and over again - for years to come.

"You must own some gold in this economic environment. Gold represents the epitome of the natural resource boom because it is the world's best barometer of inflation and financial crises. When inflation is on the rise, as it is now all over the world, gold thrives.

"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.