"Population growth will likely spur increased demand commodities," says ETF expert Doug Fabian. In Making Money Alert he looks at PowerShares DB Commodity (NYSE: DBC).

"World population growth trends suggest massive numbers of new global citizens on the way -- citizens that are going to require essentials such as food, clothing and shelter.

"For investors who want to ride this population wave, I offer you the PowerShares DB Commodity Index, an exchange-traded fund that seeks to track the performance of the Deutsche Bank Liquid Commodity index.

For 25 years, Steven Halpern, editor of TheStockAdvisors.com, has surveyed the leading financial newsletter advisors asking for their favorite stocks for the coming year. This article is one of 100+ ideas in the Best Stocks for 2008 report.

"The commodity bull market has a long way to run, powered by explosive growth in the BRIC (Brazil, Russia, India, China) countries," says Sean Broderick, resource stocks editor for Money & Markets.

"My top conservative pick to play the broad commodities bull market is the broad-based exchange-traded PowerShares DB Commodity Index Tracking Fund (NYSE: DBC).

"As an ETF, it is like a mutual fund. However, ETFs usually have lower costs than a mutual fund and you can buy and sell an ETF throughout the day, whereas a mutual fund trades once a day.

The PowerShares DB Commodity Index Tracking Fund has a long name but a simple idea -- the fund invests in commodities: crude oil, heating oil, aluminum, gold, corn and wheat. DBC invests in that basket of commodities by purchasing futures contracts. It rebalances annually to 35% crude, 20% heating oil, and 10% to 12.5% of the other four."