Speaker Deck is the best way to share presentations online. Simply upload your slides as a PDF, and we’ll turn them into a beautiful online experience.
website: https://speakerdeck.com
John Nunemaker originally created Speaker Deck, and then his company was acquired by Github. In 2017 he offered to buy it back, and the transaction closed right before the Microsoft acquisition – https://www.indiehackers.com/product/speakerdeck/acquired-speaker-deck-from-github--LvIztQJhsWDrTmgN3p6)