I spent the last three days in Guangzhou, China, and, being pathologically addicted to using Stack Overflow, decided to spend a portion of my evenings answering questions. To my disappointment, the site had some accessibility problems. Sometimes the site was fully accessible, but other times a given page either would not load at all, or would only load after many minutes. As a control, I checked sites like Google and Facebook (which are fully blocked), and sites like Yahoo and Wikipedia (which are fully accessible, without any issues).
I can't explain this, and this question seems to say that there should be no problem with China. One theory I had is that some of the ads on the pages might be using Google or some other blocked service, but I could be wrong.
