I've added Wikipedia homepage and Hillary Clinton (Re: bug
page to ShowSlow.com's tracker:
Right now ShowSlow.com's beacons tracks only YSlow and display YSlow grade
and page size, but I'm hoping to add more measurements in the future.
Let me know if this kind of information is interesting to you for your
Usability initiative or general front-end optimization projects.
ShowSlow is open source so you can run your own instance if you like - I'll
be happy to help setting it up.