The messaging app that is an acronym for "Searchable Log of All Conversation and Knowledge" was founded by a business of what descent?
Stewart Butterfield Daniel Stewart Butterfield (born Dharma Jeremy Butterfield, 1973) is a Canadian entrepreneur and businessman of Polish descent, best known for being a co-founder of the photo sharing website Flickr and team messaging application Slack.
Karen Marie Shelton Karen Marie Shelton (née O'Connor; born June 23, 1951) is an Internet-based entrepreneur, the CEO and founder of Hairboutique.com, one of the oldest and largest consumer hair portals on the Web. She is also the CEO and co-founder of T&S Software, a telephony software provider of award winning software in the VOIP arena. She has authored more than 2,500 original articles on consumer hair care topics.