Twitter and other such social networking sites will become a key means for people to communicate with government, businesses and friends, according to Evan Williams, founder of the micro-blogging site.
Evans told the BBC that the service will be expanding into new regions of the world, where only the simplest technology is currently available.
He added that Twitter could help encourage freedom of speech in areas where censorship is still an issue, as it is an "open exchange" through which people can communincate.
"Our goal at Twitter is to be a force for Good," he said on BBC's The Interview.
"We have a fundamental belief, having worked on this type of thing for ten years, that the open exchange of information has a positive impact on the world."
Reiterating the fact that the service's founders do not intend to start charging for its usage, he added that they will also be supporting expanded SMS coverage in countries such as India and Haiti.
However, Mr Williams told the BBC's Carrie Grace that Twitter remains blocked in China and that there are currently no specific plans for the area.
This follows news that Google has reportedly decided it will exit from the Chinese market, after it was unable to reach a consensus with the country's government over the censorship of its search engine.
