Tim Berners-Lee, inventor of the World Wide Web, on Monday accused Facebook of creating a "closed silo of content".
"The web evolved into a powerful, ubiquitous tool because it was built on egalitarian principles. The web as we know it, however, is being threatened in different ways. Some of its most successful inhabitants have begun to chip away at its principles," he added, while writing an essay in the latest issue of the Scientific American journal.
Social networking sites that do not allow users to extract the information they put into them is a problem that could mean the web is "broken into fragmented islands", he said.
The founder of the internet also expressed concern on how a social networking site could become "so big that it becomes a monopoly, which tends to limit innovation".
He also criticised companies that opt to build mobile or desktop applications, such as Apple's iTunes or smartphone apps. "The iTunes world is centralised and walled off," he added. "You are trapped in a single store, rather than being on the open marketplace. For all the store's wonderful features, its evolution is limited to what one company thinks up," he wrote.