Back in the late 1990s, when I was at grad school VRML was going to take over the world. My peers and I built all manner of useful and interesting things with it by hooking it up to Java and Javascript code.
Of course back then computers were many times slower than they are now - multicore CPUs were largely the stuff of science fiction or hush-hush research projects and our VRML applications ran just that little bit too slowly to catch on in the real world.
A decade on, even a cheap PC with a bog-standard GPU would happily run any of our VRML models with ease and possibly might require throttling to ensure they weren't so fast as to be unusable. But the VRML community has died a bit of a death, web-3d hasn't caught on and I can't even find a browser plug-in. X3d was mentioned a while back but that too hasn't caught on.
Does anybody have any ideas what happened? Is there some other 3D web technology I'm not aware of?
EDIT:
For passing historical interest: 1998 Article on the demise of VRML (The Wall St Journal)
I think the idea was that people would enjoy using 3d interface to navigate information.
This proved incorrect. People use 3D interfaces pretty much exclusively for gaming (or for specialized purposes, such as architecture, engineering or medicine).
During the 90s there was a mini-explosion of technology based around this idea. I remember that Apple designed a 3D browsing system (the name escapes me) that never went off the ground.
In the end, it's far easier for humans to scan 2D representations for information and navigate that way.