Dropbox announced today_that it has hit a new milestone of 300 million users, tacking on 100 million users in just six months since it passed the 200 million mark in November 2013. The file-sharing service previously took one_year to add on 100 million users_from November 2012. Its growth in user numbers could be partially due to Dropbox’s renewed focus on perfecting and rolling out affiliated services. Last month, the company made its business-focused service available to all corporate users. Dropbox also_recently announced Carousel, a cross-device photo and video gallery, seeking to make it more convenient for users who use Dropbox...

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