[ilovetv]

Two informative articles--with both positive and negative points--on this subject:

"..Rather than setting off a boom in the U.S. manufacture of replacement lights, the leading replacement lights are compact fluorescents, or CFLs, which are made almost entirely overseas, mostly in China.

Consisting of glass tubes twisted into a spiral, they require more hand labor, which is cheaper there. So though they were first developed by American engineers in the 1970s, none of the major brands make CFLs in the United States..."
Light bulb factory closes; End of era for U.S. means more jobs overseas

General Info and Do's and Don'ts about CFL's:

Q: I don't want to buy any CFLs that are not made in the US. What brands are those?

A: There is only one CFL manufacturer, Lights of America, whose bulbs are assembled in the US. But many of their parts come from off-shore. All the major brands, Sylvania, GE, Philips, Maxlite,Westinghouse, TCP, Feit, Greenlite, Satco and Globe to name a few, have their bulbs made off-shore. In fact, most all of the products we buy or consume come from outside the US. Buying only CFLs with the Energy Star label assures you they have met very strict quality standards, regardless of their country of origin.

Seattle City Light Residential Conservation | Compact Fluorescent Bulbs