According to a new survey almost a quarter of U.S. workers who use a computer at work admit to having searched for a new job on their companies' time and resources, according to a new survey by Hudson. While another 30 percent send and receive personal e-mails at work at least most days, if not every day.

Most workers who use computers say their employers know they use the Internet for personal business.

Additionally three-quarters of them believe their bosses are aware of how much they use the Internet for non-work related activities, and 48 percent believe their companies' monitor their computer use.

Of those who think they are being monitored 26 percent of them looked for new career opportunities while at work. That figure drops to 21 percent for employees whose managers know they use the Internet for non-work related tasks, and jumps to 32 percent for workers who believe their manager is unaware.

Kris Rzepkowski, Interactive Manager, Hudson North America says, "Employers should not discount the impact attentive managers have on shaping workplace behavior and productivity."

He continues, "Corporate policies serve their purpose, but employees respond best when those rules are a part of the day-to- day interaction with their supervisors."

The study also sheds light on the fact that managers are no better than the rest of the work force when it comes to using the Internet for personal matters. Almost a quarter of them admitted to job hunting at work, but one-third send or receive personal e-mails on the job at least most days, compared to 26 percent of non-managers.