<P> YouTube was founded by Chad Hurley, Steve Chen, and Jawed Karim, when they worked for PayPal . Prior to working for PayPal, Hurley studied design at the Indiana University of Pennsylvania; Chen and Karim studied computer science together at the University of Illinois at Urbana--Champaign . YouTube's initial headquarters was above a pizzeria and Japanese restaurant in San Mateo, California . </P> <P> The domain name "YouTube.com" was activated on February 14, 2005 with video upload options being integrated on April 23, 2005 . The first YouTube video, titled Me at the zoo, was uploaded on April 23, 2005, and shows co-founder Jawed Karim at the San Diego Zoo . </P> <P> YouTube began as an angel - funded enterprise working from a makeshift office in a garage . In November 2005, venture firm Sequoia Capital invested an initial $3.5 million, and Roelof Botha (a partner of the firm and former CFO of PayPal) joined the YouTube board of directors . In April 2006, Sequoia and Artis Capital Management invested an additional $8 million in the company, which had experienced significant growth in its first few months . </P> <P> During the summer of 2006, YouTube was one of the fastest growing sites on the World Wide Web, hosting more than 65,000 new video uploads . The site delivered an average of 100 million video views per day in July . It was ranked the fifth-most - popular website on Alexa, far out - pacing even MySpace's rate of growth . The website averaged nearly 20 million visitors per month according to Nielsen / NetRatings, with around 44% female and 56% male visitors . The 12 - to 17 - year - old age group was dominant . YouTube's pre-eminence in the online market was substantial . According to the website Hitwise.com, YouTube commanded up to 64% of the UK online video market . </P>

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