Blackboard publishes the most current service availability in table form. I love this idea and wish D2L had something similar. It's nice to be able to go there and say to a student or instructor having trouble, oh, yes, there are some status issues with that software.

After making the list of 23 things online teachers should know, I remembered that I found a link checker website and wanted to post it here.

I love this publication on how to facilitate a discussion board. It is easy to read and just has a TON of tidbits on how do run a good discussion board in your online class. I refer to it often. It is a little old, so as I recall, there might be a few links within the document that are broken, but there is a lot of content, so you won't miss it probably.