LinkedIn SlideShare is a Web 2.0–based slide hosting service. Users can upload files privately or publicly in the following file formats: PowerPoint, PDF, Keynote or OpenDocument presentations. Slide decks can then be viewed on the site itself, on hand held devices or embedded on other sites. Launched on October 4, 2006, the website is considered to be similar to YouTube, but for slideshows. It was acquired by LinkedIn in 2012. The website was originally meant to be used for businesses to share slides among employees more easily, but it also has expanded to become a host of a large number of slides that are uploaded merely to entertain. Although the website is primarily a slide hosting service, it also supports documents, PDFs, videos and webinars. SlideShare also provides users the ability to rate, comment on, and share the uploaded content. The website gets an estimated 70 million unique visitors a month, and has about 38 million registered users. SlideShares biggest competitors include Scribd.com, Issuu and edocr. Some of the notable users of SlideShare include The White House, NASA, World Economic Forum, State of Utah, O'Reilly Media, Hewlett Packard and IBM. SlideShare was officially launched on October 4, 2006. Rashmi Sinha, the CEO and co-founder of SlideShare is responsible for partnerships and product strategy. She was named amongst the worlds Top 10 Women Influencers in Web 2.0 by FastCompany. Jonathan Boutelle is the CTO of SlideShare and came up with the initial idea behind the website. He wrote the first version of the site. Amit Ranjan, the COO, heads SlideShares development team in India and focuses on product management, content and community.