Our current server does not seem to be stable any longer. If you have had problems logging in, or with students using the site, this is likely the problem. We apologize for any inconvenience you may have experienced. If the site seems to hang up, you will likely have the most success by closing the current browser tab and starting fresh in a new one.
To remedy the problem, we are moving the site to an Amazon hosted server. This will take a few days, but we hope to have the move completed by September 9, 2013. If you try the site very early in the morning this Thursday or Friday (US Central time) and get nothing, it will probably be because the site has moved and the Internet is in the process of updating the new server address. (max 6 hours) The good news is that this should solve the problem. If Amazon isn't running, nobody's running:) Again, we are sorry for the trouble, and we thank you for your support.