Even after spending hours behind a computer screen, we're often amazed by how little we get done during a workday.

Indeed, frittering time away is outbreak in the office: survey of 2,000 workers from Inc., a Web site that provides recompense data, found that Americans waste about 20% of their time at work; with 34.7% of those surveyed saying surfing the Internet is the biggest interruption.

An emerging crop of software now aims to make individuals more aware of how they spend their screen time. Previously meant for free-lancers looking to keep track of billable hours, software developers are realizing that time-management applications are helpful for anyone who wants to track which Web sites they visit and how much of their day is spent on definite work tasks or computer applications.

Some services record and catalog users computer activities often allowing workers to classify chunks of time as either creative or unproductive. Other services function by having users set goals for how much they'll get done in a set period of time.