The messaging app that is an acronym for "Searchable Log of All Conversation and Knowledge" was founded by a business of what descent?
Slack (software) Slack is a cloud-based set of team collaboration tools and services, founded by Stewart Butterfield. In simpler terms, it is a chatting program. Slack began as an internal tool used by their company, Tiny Speck, in the development of "Glitch", a now defunct online game. The name is an acronym for "Searchable Log of All Conversation and Knowledge".
Luis von Ahn Luis von Ahn (born 19 August 1978) is a Guatemalan entrepreneur and a Consulting Professor in the Computer Science Department at Carnegie Mellon University. He is known as one of the pioneers of crowdsourcing. He is the founder of the company reCAPTCHA, which was sold to Google in 2009, and the co-founder and CEO of Duolingo, a popular language-learning platform.