This Thursday, PowerShares Capital Management LLC, will introduce a new exchange traded fund (ETF) based on the WilderHill Clean Energy Index, the first index comprised of companies focused on developing renewable sources of energy, clean energy technologies and environmentally-friendly technologies within the energy sector. The "PowerShares WilderHill Clean Energy Portfolio" (PBW) will begin trading on the American Stock Exchange March 3, 2005 and will replicate the WilderHill Clean Energy Index. [ more ]