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.

"Although the nanotech sector in general is more speculative, a relatively more conservative pick within this space is PowerShares Lux Nanotech Portfolio (ASE: PXN), a favorite of mine for 2008," says nanotech and science guru Josh Wolfe, editor of the Forbes Wolfe Emerging Tech Report.

"With a significant amount of hedge fund assets in companies with market caps below $5 billion, the past quarter's liquidity crunch has hurt small-cap companies. The PowerShares Lux Nanotech Portfolio has seen significant decline with its small-cap constituents.

"But it also has large-cap multinational companies with significant overseas business. A year ago I liked it because it was a representative diversified index of companies that derived value from incorporating nanotech into their product lines.

Today, it's on sale today and if you want exposure to this long-term secular trend of advanced materials and nanotech and you're willing to be a long-term holder, I'd make it a piece of a broader portfolio. (Full disclosure: I'm a shareholder in Lux Research, which partnered with Powershares to form the 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.

"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.