America's small business owners are optimistic in the face of the economy's downturn, with the majority planning to expand their operations despite cash flow concerns and soaring energy costs, according to a recent survey for OPEN from American Express, the company's small business team.

More than a third of small businesses plan to hire full or part-time staff over the next six months, according to the telephone survey of 627 owners and managers of companies with fewer than 100 employees. The poll was conducted by Echo Research .

"You can't deny that it's a tough time for everyone, but these entrepreneurs take it in stride and see themselves as in charge of their own destiny," said Alice Bredin, small business advisor for OPEN. "This is a good opportunity for them to hire people leaving other jobs, talent that was not available to them a year or two ago. They can also pick up office equipment for a cheap price."

The survey found that 9 out of 10 small business owners said they saw the glass as half-full.

"They're positive because when they see their friends or people they know losing jobs, they're grateful to be where they are and appreciate the lifestyle they have, now more than ever," Bredin said.