About 60% of the traffic to Hearst digital goes to standalone brands like RealBeauty (beauty products), eSpin (a teen social community) and DailyGreen (organic food purveyor).

FORBES: Ad sales for May are up 17%--and climbing.

The research didn't cost his company a nickel, because ESpin and the SimCenter were able to tap university and federal and state government grant programs for small business.

FORBES: Back on Track

In Chattanooga, Tenn. the industry includes something very different: ESpin Technologies, a 19-employee outfit that makes nanofibers--filaments of polyester, nylon or other polymers that are only 20 to 200 nanometers wide.

FORBES: Back on Track