"Zero greenhouse gas emissions, 90% average availability as a power source, minimal land requirements and competitive costs: those are just a few of the advantages of geothermal power," explains Roger Conrad.

In his leading-edge New World advisory, he looks at one favorite play on the sector: Ormat Technologies (NYSE: ORA), which operates a dozen geothermal plants worldwide.

"Geothermal's chief disadvantage is geographical limitations to large-scale applications. Geothermal plants are mainly economic in areas of subsurface or volcanic activity.

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.

"My more speculative favorite for 2008 is Market Vectors Nuclear Energy (ASE: NLR)," says scientist and technology stock expert Josh Wolfe, editor of the Forbes Wolfe Emerging Tech Report.

"The Market Vectors Nuclear Energy exchange traded fund is one of the first dedicated nuclear energy ETFs, with exposure to both domestic and international companies. It began trading in August 2007.

"I'm a nuclear bull for a few reasons. As fears of global warming rise, fears of nuclear recede -- even environmentalists are getting on board. A month ago for the first time in US history, a coal plant was denied in Kansas on environmental grounds.

"I've called this the 'Kansas Syndrome' -- like the 'China Syndrome' that crippled growth of nuclear power for three decades -- coal's future may soon be in doubt.

With Boeing Co. (NYSE: BA) having now showcased its new 787 Dreamliner, investors might wonder if it is too late to invest. According to three newsletter advisors, there are still upside opportunities. One looks at Boeing itself, one spots value in an aircraft seat and interior designer, and one looks at an aircraft leasing play.

Boeing is a buy for longer-term investors from Bernie Schaeffer, who recommends the shares in his Power Stocks advisory.

Technically, the advisor notes that Boeing recently broke out after a lengthy sideways consolidation. From mid-November 2006 to the middle of last month, he points out that the stock traded in a narrow range between $85 and $92. He explains, "Such long periods of sideways movement can be followed by extended trends."

That level, he now says, should hold as support and should serve as a "foundation for higher prices." Further, he adds, the stock's rise above $100 is "psychologically significant" and should offer additional support for the stock.

The contrarian advisor notes, "Even with the strong fundamental and technical backdrop, Wall Street remains fairly pessimistic. According to Zacks, nine of the 18 analysts rate the stock a 'hold' or worse and three of those have a 'strong sell' rating on it. Any upgrades or upward price target revisions from this skeptical crowd could boost the stock."

Meanwhile, he maintains a target price for the stock is $127 a share. In addition to investing in Boeing itself, there are two ancillary companies that couldl benefit from the success of the Dreamliner.