Our entrepreneurs are at it again. This time they're finding fresh ways to help the U.S. kick its oil habit. (more)

CHENG DESIGN BY ZEPHYR (more)

A Florida health-care firm boosts cash flow by making its invoices easy to pay—and easy to find. (more)

Could poultry scraps be the next big source of fuel oil? (more)

Idealab's Bill Gross has a new gadget that could transform solar. (more)

Konarka's superthin film uses nanotechnology to generate electricity from the sun. (more)

Opportunities abound in energy for new business. (more)

A new green truck-stop service helps drivers rest—and the rest of us breathe. (more)

A plastics maker breaks the mold. (more)

A South Dakota tribe's utility rides the wind to a brighter and cleaner future. (more)

In 35 years Ground Round has had five owners. (more)

Stunned by a sudden bankruptcy, stubborn franchisees step in to buy their parent company. (more)

Much to her surprise, Judi Henderson-Townsend discovered that she had a head for figures—the fiberglass kind, that is. (more)

An innovative chain called MinuteClinic is trying to reinvent the way you get treated for routine ailments. (more)

A young firm avoids Wall Street conflicts and finds the best small-company stocks. (more)

California's Livermore Valley, one of the state's oldest wine regions, is suddenly one of its hottest. (more)

Patented lobster technology draws hungry predators to a New England restaurant. (more)

Businesses are born of the oddest urges— such as trying to find high-quality dog food in Hong Kong. (more)

A family-owned architecture firm aims to supercharge online sales. (more)

Small Firms (more)

A crossbreed of surfing and snowboarding, the little-known sport of sandboarding may be the next extreme pursuit to go mainstream. (more)

Mountain climbing not tough enough? Try going up the frozen stuff. (more)

Dallas gets a world-class sculpture gallery. (more)

A scary-looking but functional new sport pickup. (more)

Fast-spreading "lifestyle centers" are making big-box retailers look and feel like small-town shops. Frustrated entrepreneurs ask, How can we compete? (more)

How architects make big boxes look small. (more)

Robert Kiyosaki wants you to see him as the rich dad you never had. (more)

Their tricks cost me some contracts—but brought me some too. (more)

Fessing up to your mistakes can be good business. (more)

A textile merchant wins big by asking permission to pitch. (more)

That's not candy, you rube; it's organic fair-trade Madagascar cacao. (more)