LinkedIn acquired a company called SlideShare 7 years ago, adding this professional content sharing platform for business documents, videos and presentations.
From their website:
With over 18 million uploads in 40 content categories, it is today one of the top 100 most-visited websites in the world.
There are slide deck courses on just about anything you can imagine, business and otherwise, from AI to zebra books for kids.
Even pirated copies of materials that do not belong there. Like those zebra books for kids, and other books and copyrighted material.
My suggestion: use SlideShare for legitimate educational purposes.
But if you post your own material there, beware the bad guys can steal it from you too.
Like all technology, it has its good users and its not-so good ones too.