In case you're like me and you're anxiously hoping that your Christmas orders arrive in time, here's a quick tip.
To find the tracking page for your package, just enter the tracking number in the Bing search page and hit Enter. That should bring up the link to the Fedex tracking page.
Alternatively, if you're using Bing as the default search engine in your browser, you can just press Ctrl+E to put the focus on the search box, paste the tracking number and hit Enter - voila!
As I understand it, this also works with other services like UPS, but I haven't tried those myself yet.