By TIM SIMMONS, Raleigh News & Observer

It might feel better to nail your demands to a wall, but trade that hammer for a cell phone and a group of engineers at Duke University believes you'll soon be using their software to post virtual sticky notes.And you'll do it instead of using Google to find the information you need. Slide this invention into the category titled "Big Ideas."

Encouraged by a legal victory at Boston's Logan International airport, skycaps at several other East Coast airports have sued over pay.Skycaps in Raleigh-Durham and Charlotte, N.C., Philadelphia, and Washington, D.C. have joined similar suits. And lawyers involved in the cases say more complaints are likely in the coming months.

RALEIGH, N.C. -- About a decade ago, Steve Michielsen was like a lot of inventors. He had a great idea, no money and only a vague plan for how to unleash his genius on the world.This month a specially treated fabric is rolling off machines that will be used to make face masks that Michielsen thinks will kill virtually any human or animal virus on contact.

It wasn't that long ago that a sustainable business was one that simply turned a profit year after year. But that's before "sustainable" became its own buzzword. A company that wants to be sustainable today is a business that makes money without fouling the environment or upending people's lives.