SlideShare is a website for sharing presentations that was founded in 2006 and acquired by LinkedIn in 2012. It has over 51 million monthly visitors. Users can create profiles to upload, comment on, and share presentations and documents in various file formats. Content on SlideShare can be made public or private, and users can follow others and search based on topics or keywords. Presentations can also be embedded on external websites or within other presentations along with other multimedia content like videos and audio.