The courses I teach are 6 weeks long. Students get a lot of information during that time and I try to be as available as possible. We have online live chats twice a week but since they are not required, they don't have high attendance rates. I was thinking about creating an IM account and saying that I'll be signed on for questions at a certain time on certain days. Do you think this is a good idea? If so, which IM host is best? I use Facebook chat but that's about it. Do people still use Yahoo! or AOL chat?