SlideShare is a website that allows users to upload and share presentations, documents, videos and other professional content. It was founded in 2006 and acquired by LinkedIn in 2012. With over 25 million monthly visitors, SlideShare allows users to view and comment on uploaded content, as well as embed slides on other websites. However, some limitations exist, such as the loss of animations and effects when uploading PowerPoint files, a 100MB file size limit, and the need for a Pro account to upload privately or larger files.