Despite the increased opportunities, seniors may find the job market for them is as tight as for everyone else in a struggling economy.

Going back to work part time should help Austin get by, but getting hired for a worthwhile job in retail, merchandising or working with disabled people is proving tough. She wonders if age discrimination is a factor.

"A lot of these folks who are hiring are in their 20s or 30s, and they think people in their 60s are ancient," she said. "If it comes down between you, with a lot of experience, and a younger person, I feel they're going to go with the younger person."

One concern is that, despite their strengths, older workers often are perceived to resist training, dislike answering to younger bosses or have poor computer training, according to AARP's Russell. Seniors need to assess their skills and seek out job-searching tips, particularly if they haven't gone through the process in recent years, she said.

"The job market has changed," Russell said. "Employers are accepting job applications online, they expect to see your resume online, interviewing has changed, so it's important to keep up."

AARP has a program that helps age 50-plus workers with job opportunities — its National Employer Team, which connects job-seekers with a wide variety of opportunities.

RetirementJobs, which lists more than 30,000 jobs across all 50 states, has seen a surge of retirees come to its site since the economy soured, with traffic doubling to 400,000 visitors a month between July and September.

"About four to six months ago, we started seeing a significant new group of people, already retired, who needed to return to work," said Bob Skladany, chief career counselor at RetirementJobs and an adviser to AARP on work-related issues.

On top of that, he said, the wave of layoffs this fall has been bringing in younger job-seekers from 50 to 53.

The good news is there are still plenty of jobs available for the 50-and-up work force, he said. Sectors that are hiring in significant numbers include health care and home health care, retail and hospitality, and customer-service openings of all kinds exist, Skladany said.

On the plus side, mature workers appeal to many employers because they are seen as hard-working and more dependable and loyal than younger peers. That makes it much more common for companies to now hire people up to their mid-60s, according to Bob Hoberman, a partner at RW Consulting Group, based in Holmdel, N.J., which operates RetireeWorkforce.com.

Still, getting hired at 65 or over by a new firm can be challenging, he said. Employers may not want to hire older workers because of health concerns or other issues.

"I think companies certainly are looking to retain their own people over 65, and it's not going to be unusual at all for people to work till age 70," Hoberman said. "But whether they're as willing to hire someone over 65 from the outside remains to be determined."