In your travel packet, Gladney suggests you get a VPN (Virtual Private Network) in order to access all websites in China. Many websites here are blocked. A VPN is easy to do, just google "Free VPN" I used VIPVPN Co.
But, here's the deal. It's free for only so much data usage. So, you won't want to leave it on for ALL of your online stuff. Just have it on for FB and blogs, or other sites that may be blocked. Don't do a lot of downloading of pics, because that uses more data usage. I left ours on because I didn't know it was limited. After you exceed your free usage, you have to pay a few dollars for more. It doesn't cost much, but I haven't been on it enough now to see how much usage FB or blogs use.
It's very frustrating when your email closes out a million times, or you can't access your bank account online. A VPN number alleviates this. And the VPN websites walk you through it step by step. We are using an ipad. Very easy to do...it loads itself into the settings and gives you an icon app to purchase more usage.
You CANNOT get a VPN while in China. All of those websites are blocked.
JUST FYI! :)