Slideshare, founded in 2006 and acquired by LinkedIn in 2012, is the world's largest platform for sharing presentations and professional content, boasting 60 million monthly visitors and over 15 million uploads. Key features include built-in analytics, easy embedding of presentations, and mobile app accessibility, while the platform has notable strengths and weaknesses, such as the lack of built-in view tracking and limited transitions. Best practices for engagement include creating targeted content, being active in the community, and regularly uploading new presentations to gain visibility.