The internet has transformed the way in which voters access and receive political information, researchers said.
It has allowed politicians to directly communicate their message to voters, circumventing the mainstream media which would traditionally filter information.
Stephan Heblich from the University of Bristol in the UK studied data from a number of countries, comparing voter behaviour of municipalities with internet access to the ones without in the early 2000s.
Similarly, the internet seemed to have crowded out other media at the expense of information quality.
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However, the introduction of interactive social media and "user-defined" content appears to have reversed this. It helped voters to collect information more efficiently.
US President Barack Obama's successful election campaign in 2008 set the path for this development. Obama successfully employed Chris Hughes, a Facebook co-founder, to lead his highly effective election campaign.
In doing so, he gained nearly 70 per cent of the votes among Americans under the age of 25.
However, voters can now be personally identified and strategically influenced by targeted information, researchers said.
Politicians may use this information in election campaigns to target voters that are easy to mobilise.
The research shows there is a thin line between desirable benefits of more efficient information dissemination and undesirable possibilities of voter manipulation.
Therefore, policymakers need to consider introducing measures to educate voters to become more discriminating in their use of the internet, researchers said.
"One potential risk relates to the increasing possibilities to collect personal information known as 'big data'," he said.
"This development could result in situations in which individual rights are violated, since the personal information could be used, for example, to selectively disseminate information in election campaigns and in influence voters strategically," he added.