Slideshare is an online hosting service that allows users to upload presentations, documents, and videos in formats like PowerPoint, PDF, and others. Content can be viewed on the site or embedded elsewhere. It was launched in 2006 as a platform for sharing slide-based content, similar to how YouTube hosts videos. Users can choose presentations to edit from their published content. Slideshare is owned by LinkedIn and allows private or public sharing of files so they can be viewed on the site or embedded on other websites. Teachers and students can use Slideshare to find or create engaging presentations that promote learning.