Who's Who in American Business Computer Program

There is another topic here about computers used in the late 80s. On a similar subject, what was this "Who's Who in American Business?" Doing a Google search on this, I found something called "Marquis Who's Who." Would this be something like this, but in electronic form?

I feel like this is an early form of social media like Facebook or LinkedIn. It makes me think about how I sometimes use LinkedIn to make new business contacts, see people's occupations, and find some talking points prior to a meeting.