[[http://archiveofourown.org/ Archive of Our Own]] (also known as [=AO3=]) is a relatively new FanFic Web site. The site itself has been running since late 2008, but has only started to become widespread and popular from 2011 onward. To give an indication of how young it is compared to the existing behemoth FanFictionDotNet, [=AO3=] reached one million stories in total on February 15, 2014. The ''Franchise/HarryPotter'' fandom on FFN had roughly 674,000 on its own on the same day. The rise in popularity has been helped along by the rise of Website/{{Tumblr}} as both sites share a similar fandom mentality and outlook, as well as by [=AO3=] being the official hosting site or encouraged posting site for a few popular fanfic fests and events such as Yuletide. It also gained popularity when Fanfiction.net had a crackdown on Mature Content Fics. [=AO3=] is very popular because it allows users to view fics as one single document instead of the separated chapters and even download stories as HTML, EPUB, MOBI and PDF files, making it great for people who want the stories on the go.
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