What is the state of Esperanto on the internet today, has it changed from the time you mention?
Oh, thank you for asking! Yes, very much so! When I learnt Esperanto via email correspondence course, I was the very first person in Russia to have learnt the language on the Internet. Today it would be quite unusual to not learn Esperanto online. When lernu.net came out (by the way, one of the outcomes of that first seminar in Uppsala), many thousands of people around the world, especially the young ones, got access to a high-quality free Esperanto learning resource. Other online services using Esperanto have improved drastically as well, like Wikipedia in Esperanto. And when DuoLingo had featured Esperanto, the new huge wave of adoption arrived.
Right now Esperanto is experiencing a Renaissance of sort – all thanks to the power of the Internet. Even Monero (XMR) owes its name to Esperanto. ;)