I’m developing a site that is international and needs some localized features. I’m using foreign proxies to test the features, and found this list helpful.
A very helpful service to test a site’s availability in China.
Very handy virtual machine image for web testing.
A highly-rated summary of testing best practices.
I have IE 7 beta 2 on my laptop, but it’s nice to have a utility like this if the laptop’s not handy.