A quarter of HR decision makers have rejected applicants for jobs based on dubious personal information found online, according to recent research.

The survey, conducted by YouGov for business social network Viadeo and which quizzed more than 2,000 consumers and over 600 employers, also found that one in five employers have searched for and found personal information about candidates on the web, and 59 per cent say it influenced their recruitment decision.

On a more positive note, the findings also showed that online information can be positive for some applicants, if it is presented in an appropriate way, with 13 per cent of HR decision makers saying they would not have taken the decision to recruit them if they had not seen the positive information about them on the internet.

As a result of the research, Viadeo has launched a film to support its ongoing campaign, warning people of the dangers of certain social networking sites. It highlights the importance of keeping your internet reputation in tact, known as ‘NetReps’.

The film, which can be viewed on YouTube by clicking here, highlights the fact that many job seekers are unaware of their personal information footprint that is left on the internet for potential employers to view.

Peter Cunningham, UK country manager at Viadeo, said: "We all enjoy networking with our friends and family online, but posting personal information for all to see on the internet also carries significant risks. It is more important than ever for people to ensure that they have a place online which reflects their professional achievements and allows them to connect with business associates. By doing so, they can positively influence their NetRep and improve their chances of getting their dream job, rather than hindering them."