If you were one of the many disappointed yesterday when the Fedora project site went down due to the immense amount of traffic, you'll be interested to know that the reason was indeed massive download traffic. Claiming they had over 10,000 downloads in only five hours (although that number includes torrents), it's no surprise that the servers were choked and some drastic measures had to be taken. Currently, the distro is only available for download via the torrents, with the official site still being blocked from downloading due to the immense amount of traffic.
This does go to show how popular the distro has become. Their site has been partially restored and has a list of up to date mirrors, but still for the most part is shut down. The Fedora wiki, however, is up and running fine.