Despite millions of unemployed job seekers desperate for work, many open positions are languishing unfilled. The reason? Not enough candidates. With job openings largely concentrated in specialized industries like health care, green technology and energy, some employers say the problem is finding qualified workers, which are in short supply. Meanwhile, they are inundated with eager candidates from other industries who lack the skills and experience that the job requires. According to a recent survey by Human Capital Institute and TheLadders, more than half of employers said "quality of candidates" or "availability of candidates" are their greatest challenges -- despite the recession. - Alexander13