HowStuffWorks is an American commercial infotainment website founded by professor and author Marshall Brain, to provide its target audience an insight into the way many things work.

In March 2002, HowStuffWorks was sold to the Convex Group, an Atlanta-based investment and media company founded by Jeff Arnold, founder and former chief executive officer (CEO) of WebMD.

The company has also released a series of HowStuffWorks trivia "LidRock" discs—CD-ROMs sold on fountain drink lids at Regal Theaters.

The series, which focuses on commodities,[16] premiered in November 2008 and is similar in style and content to other "how it works" programs, like Modern Marvels.

[17] On November 2, 2009, HSW International co-founded Sharecare, developing a social QA platform through which users ask health and wellness-related questions, receiving answers from industry experts.

Other co-founders in Sharecare include Jeff Arnold, Dr. Mehmet Oz, Harpo Productions, Discovery Communications, and Sony Pictures Television.

[5] In 2014, HowStuffWorks moved its headquarters from Buckhead to Ponce City Market, a new mixed-use development in the Old Fourth Ward neighborhood of Atlanta.