It’s hardly worth asking, but there’s no way to link to something on the web from inside an Inform game, is there?
I don’t think it’s possible in any of the offline interpreters. Hacking Parchment to display web links is discussed in this thread.
Hmm…that would only work with Z-code games, though, right?
Parchment runs text-only Glulx games too.
I use a URL-shortener to make things look tidier. Many of them will allow you to define your own custom shortened URLs if you create an account with them. That way, even if a player has to type, they don’t have to type so much.