Again, I would be interested to hear other people's definitions. The 90s are often referred to as the dot-com era now, and to me (regardless of whether ClariNet fits or not) this always was meant to refer to the explosion of companies (some real, some vapour) which arose to do business on the internet. The existing companies who simply started using the internet are not, as far as I can tell, what people refer to when they talk about this. Even though Microsoft and Apple might well be doing far more business on the internet than any upstart, they were not "dot-coms," precisely because they were not upstarts. The excitement of the dot-com era was about "Here's this new way to make a company, with better and cheaper ways to reach customers" that allowed small and brand new companies to rise to prominence quickly.
This is not to say that there was not a lot of excitement and talk about how existing companies would make use of the internet to grow or change their business. But there was, and is, a difference between that and the companies that used the internet to create their business. And you may not consider the difference between the two types of internet business to be all that significant, and thus not view ClariNet's position as possibly the earliest of the 2nd type as having any significance in the story.
It may seem like more self-promotion, but back in the early 90s the view was quite different. Back then every new internet book talked about the company, and the VCs were knocking on our doors rather than the other way around. It was exciting, but I incorrectly judged it to be overhyped, being too close to things. I think it's fair to claim it had a position of significance.
But mostly the anniversary showed up on my calendar and I thought it was time to write the story.