Apologies to anyone who is using this service. Due to lack of widespread use, we are unable to continue making our ethercalc server available. And due to the anonymous nature of the service we were unable to notify users of our plans to deprecate it.
But, if you were using this service and would like a backup of your spread sheet, please email support - at - mayfirst.org and include the link to the spread sheet you were using and we will email you a backup of it.