Subject: Re: History lesson, anyone?
Here are the details about Westport and Saul's discovery of SaaS companies in his own words:

https://discussion.fool.com/t/...

There's also the floating head interview if you are unsure he is a real person:

https://ia800203.us.archive.or...

And he's got a number of books on Amazon:

https://www.amazon.com/stores/...