Peter-
The servers are shared. I'm not sure if all of our sites are running on the same servers, but I think so. In any case, I just checked Mtbr.com and the forums there currently have over 2500 people looking at them. So the load is much, much larger than you thought. However, there still shouldn't be any problems. There were some issues last week and we made a change and I haven't seen any errors since. As Lara said, engineering might be working on something. Please let me know if you continue to see errors.