it looks like Futuremark (company behind products like PCMark, 3DMark or Peacemaker) have new services similar to Can You run it? . It's called Game-o-meter and it's part of yougamers.com service. List of Games supported is available here.
From what i can see it's Java based and works similar to SystemRequirementsLab application. It runs on my Opera browser, so it should run on other browsers too.
If mods would find this service interesting, maybe it's worth to add it to first post?
I've been using YouGamers a lot more recently to test my computer for video game compatibility and I believe it is a lot more accurate than CanYouRunIt.com. At least it has been for me and my friends who use it as well.
Just my two cents.