"We're adding Brazil's Vale S.A. (NYSE: VALE), the world's leading iron ore producer, to our model growth portfolio," says growth stock expert Stephen Leeb.

In his The Complete Investor, he explains, "This outstanding company offers investors simultaneous stakes in two key areas: iron ore-a commodity essential to any and all infrastructure projects-and Brazil's appreciating currency, the real.

"When it comes to understanding the importance of a commodity such as iron ore, the tale starts with China. Even with China's GDP growth again approaching double digits, the Chinese government continues to aggressively promote growth, offering consumers incentives to buy cars and investing in infrastructure, from roads to bridges to sewers to energy plants.

"BHP Billiton Ltd. ADR (NYSE: BHP) is well placed in coal, oil, gas, and uranium markets, making it a solid play in any investment environment," says global specialist Yiannis Mostrous.

In The New World 3.0, the advisor explains, "BHP Billiton is the only major listed company to that boasts such a diversified energy portfolio.

"Recently, analysts have unleashed an avalanche of upgrades for companies in the mining sector, coinciding with higher price forecasts for a wide range of metals.

"The main reasons for the recent upsurge in optimism regarding miners are strong economic growth in China and an anticipated restocking of materials in developed nations.

"I'm adding Bucyrus International (NSDQ: BUCY) -- a maker of mining equipment -- to our 'Wildcatters Portfolio' as a play on coal," says Elliott Gue.

In his The Energy Strategist, the advisor explains, "With commodity prices recovering and Chinese demand for coal picking up once again, Bucyrus has likely seen the trough in its new equipment business."

"Bucyrus' top end-market is coal, which accounts for more than three-quarters of the firm's business. Coal mining equipment includes draglines, a sort of giant scoop used to scrape away the overburden (rocks and dirt) that covers coal.

"Silver Standard Resources (NASDAQ: SSRI) has set a new standard for silver resources; simply put, its boasts the largest published in-ground silver resource of any publicly-traded silver company," says mining stock specialist Brien Lundin.

In The Gold Newsetter he adds, "We were fortunate over the years that the great idea behind this company was combined with a great management team, as CEO Bob Quartermain is among the best in the business."

"Silver Standard has 1.127 billion ounces in measured and indicated resources, plus another 195 million ounces in proven and probable reserves, and another 456 million ounces in inferred resources.

"Its resources come from a portfolio of properties spanning the globe from Argentina, Peru, and Mexico, to Canada, Chile, the US and Australia. Now the companyis making the transition to production with aggressive development programs on five core properties.

"When most people think of Africa, images of business and commerce don't usually spring to mind -- more like wildlife, safaris and famine," suggests Nathan Slaughter.

In The ETF Authority, he explains, "But those perceptions are beginning to change as these countries continue to industrialize. And at the vanguard of this transformation is South Africa." Here, he looks at the iShares MSCI South Africa ETF (NYSE: EZA).

Slaughter explains, "Once a backwater country shunned by most of the international community, South Africa has made great strides over the past decade and continues to evolve. Fifteen years ago the government began an aggressive overhaul of South Africa's economy.

"Gold has yet to take off in true bull market fashion, but its chart suggests that it's coming," says Mary Anne and Pamela Aden.

In their top-notch The Aden Forecast, the resource experts discuss the outlook for gold as well as some of their favorite mining stocks for investors to consider.

"Considering that the Summer months tend to be slow months, we could still see some short-term weakness.

"More important, however, is the bigger picture as gold is poised to rise during the second half of the year." Here, they discuss their outlook and some favorite ming stocks.

"As the name suggests, Royal Gold (NASDAQ: RGLD) is a royalty company, one of the larger and longest-established of such companies, with a focus on gold," says resource exprt Adrian Day.

In his Global Analyst advisory, he explains, "In my view, the stock offers a combination of growth, low risk, and high potential." Here's his look at this "golden opportunity."

"In the past year, the company has acquired two significant royalty packages, the first last year from Barrick and more recently from Teck Cominco. The Barrick package includes approximately 70 royalties.

"Even before these acquisitions, it had a solid long-term growth record, in royalties and in revenues. Its pipeline is solid, including a royalty on the large Pensasquito mine of Goldcorp; when that ramps up in 2012, it will add about 25% to Royal's revenues.

"Resource-rich, politically stable and increasingly prosperous, Chile is an attractive play on commodities and growing wealth in emerging markets," explains Mark Salzinger, editor of The Investor's ETF Report.

Chile is also a favorite investment position of Nicholas Vardy, editor of The Global Bull Market Alert, who notes, "Thanks to its fiscal prudence, its lack of a domestic housing bubble, and its sizeable wealth reserves, Chile has weathered the current global economic meltdown better than most countries."

Here, the two advisors assess the longer-term opportunity in iShares MSCI Chile (NYSE: ECH), an exchange-traded fund.

"The worst crisis of all time, in my view, is the critical global shortage of fresh water," says " Larry Edelson. In Money & Markets, the resource expert offers four water sector plays.

"The world's water crisis is now getting worse by the day. And the global financial and credit crisis is merely one reason why. Another is the ongoing modernization of major parts of the world, which is increasing demand for water, while at the same time polluting it.

"Yet another is major droughts around the world, including in our own back yard, where 60% of the U.S. is officially experiencing a drought.

"New technologies and techniques for better water supply management and improved conservation on the demand side could potentially avert a worldwide disaster. And as a long-term investment, water is one of my favorites. For both its tremendous social cause as well as its profit potential.

This post is part of a special report, A Dozen Ways to Play an Obama Building Boom.

Two advisors that specializes in income investing -- Mark Skousen and Nick Lanyi -- both turn to high-yielder, Southern Peru Copper (NYSE: PCU) as a contrarian play on building and infrastructure growth ahead.

Skousen, in his High Income Alert, he says, "Make no mistake, this is a contrarian play. But if you believe in buying straw hats in winter, PCU is an exceptional value at these levels."

"More than 2.9 billion pounds of copper are used in construction every year, primarily in plumbing and wiring, while electronic products use more than 1.9 billion pounds a year.

"Transportation equipment -- including cars, trains, planes and submarines -- uses more than 1 billion pounds a year.

"The manufacture of industrial equipment requires another 1 billion pounds annually. And consumer and general products, from cookware to church bells to pennies, require another 800 million pounds.

"Southern Peru operates the world's largest copper mine high in the Andes mountains, producing more than 800 million pounds of copper a year.

"Of course, the commodity bull market that was running at a full gallop in the first half of this year has stopped dead in its tracks. Copper prices are no exception. When building and manufacturing slow, so does the demand for the red metal.

"Gold is now looking stronger; it is time that investors have gold in their portfolios," says Curtis Hesler. In the The Professional Timing Service, he looks at gold's seasonal patterns.

"I think they will rush to commodity-based assets because of the serious underinvestment phase the commodity sector is involved in now. This will lead to shortages and very high prices down the road in all commodities.

"Once the dollar begins to roll over, gold will be an instant benefactor. It is already looking stronger in my technical work, and it is time that investors should have gold in their portfolios. I still recommend that you put new money into the major gold miners only.

"We are approaching an interesting seasonal period for gold. Years ago, the Stock Trader's Almanac used to specify a seasonal trade in gold.

"Their study showed that if you bought ASA Ltd. (NYSE: ASA) at its low in November and sold it at its high in the first quarter of the next year, you would have averaged a gain of 87.8%.

"Seattle-based Plum Creek Timber (NYSE: PCL), the nation's largest private landowner with more than eight million acres, has caught our eye," says Bill Martin.

In his BullMarket.com advisory, he explains, "Earnings have been stunted in recent quarters by the housing slump, but the company sports a strong balance sheet and an asset base that thanks to nature only gets larger and more valuable as time goes by."

"Plum Creek, which operates as a real estate investment trust, reported surprisingly solid Q3 profit. It posted net income of $69 million, or 40 cents per share, for the quarter ended September 30th, compared with a profit of $59 million, or 34 cents per share, for the same period a year ago.

"In the 2007 quarter, fire losses in Montana forced the company to report a $4 million non-cash expense, or two cents per share, related to fire losses experienced in Montana.

"The company's EPS results topped the expectations of Wall Street analysts by a penny a share. Revenue grew to $414 million, up 2% from $407 million last year. The sales results were a bit short of the consensus of $419.8 million.

"Crude oil remains deeply oversold on an intermediate-term basis, suggesting a rally sometime in the early fall," says Dennis Slothower.

The editor of Stealth Stocks looks to Petroleo Brasileiro SA (NYSE: PBR) as his latest "stock of the month." Here's his review of the Brazilian firm that is now the world's 8th-largest oil company.

"The founding of Petrobras was authorized in October 1953, with the objective of executing, on behalf of the federal government, the activities of the oil sector in Brazil.

"Over the past five decades or so, the company has become the country's leader in the distribution of oil products, an activity not covered by the government monopoly, and today it is internationally acknowledged as the eighth-largest oil company in the world.

"Leading the sector in the development of one of the most advanced deepwater and ultra-deepwater technologies for oil production, PBR was twice (in 1992 and 2001) awarded the Offshore Technology Company (OTC) prize, the most important award in the sector.

"People want to own more gold when there's a perception of growing global economic and political turmoil," explain resource experts Roger Conrad and Yiannis Mostrous.

In their Vital Resource Investor, the advisor offer their long-term bullish assessment for gold as well their favorite gold mining stock: "Goldcorp (NYSE: GG).

"Every commodity bull market eventually ends when consumers permanently reduce demand with conservation and switch to alternatives, and the producers ultimately over-expand. This, however, only happens over a period of many years.

"To be sure, we've seen demand in the US drop for many vital resources, from copper to energy, as the economy has slowed. Demand from developing nations, however, remains entrenched by necessity, as these suddenly more affluent nations struggle to upgrade their vital infrastructure.

"And although we may see Chinese economic growth slow from its current off-the-chart 10% rate, that country will still face critical needs to build out its cities to meet the millions of new migrants that come every year. And that's a huge call on raw materials.

"In a year wracked by economic uncertainty and stumbling global stock markets, Russia has been an unlikely standout performer," explains global investment expert Nick Vardy.

In his Global Bull Market Alert, the advisor asserts, "The Market Vectors Russia ETF (NYSE: RSX), is a bet that Russia's buoyant stock market performance this year is set to continue."

"Even as China is now down by more than 50%, bad boy Russia's performance has been second only to Brazil this year and it actually has outperformed its BRIC rival by a hair during the past three months.

"Despite Russia's reputation as a country rife with corruption, scant respect for genuine democracy and the Rule of Law, it's always hard to argue with success.

"Scan the Russian press, and it quickly becomes apparent that the contrast between the collective economic mood of Russia and the United States couldn't be sharper. While U.S. drivers cringe at $4 per gallon gas, Russia celebrates high oil prices as the source of its newfound wealth.

"To add insult to injury, the most recent Forbes 400 list confirms that Moscow now boasts more billionaires than New York City.