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firefox
free and open-source web browser developed by the Mozilla Foundation -
facebook
Harvard sophomore named Mark Zuckerberg launches The Facebook, a social media website he had built in order to connect Harvard students with one another. By the next day, over a thousand people had registered, and that was only the beginning. -
youtube
YouTube was created by three PayPal employees as a video-sharing website where users could upload, share and view content -
twitter
San Francisco-based podcasting company Odeo officially releases Twttr later changed to Twitter -
instagram
American photo and video sharing social networking service owned by Facebook, created by Kevin Systrom