Bob Stein was the founder of Voyager, publisher of the first consumer CDROM titles, and, far and away the leader of the CDROM industry in the late 1980s and early 90s. Bob was also one of the founders of the Criterion Collection, as well as the publisher of the first electronic books. 

You might know him as Rob Malda, or you might know him as CmdrTaco, but he was the founder of the great geek social website Slashdot. Slashdot recently turned 20 years old, Rob commemorated this in a great Medium post, and so I reached out to him to tell us the story of one of the first great social media websites.