Well,  the enthusiasm is most definitely infectious.  

  I've signed up for the genealogy course, and am looking forward to it for next year.  Am still a little bit anxious, as I haven't done any formal learning for years, but I'm sure it will settle down once the course starts.   Will welcome some familiar "faces" so I've searched the messages for 2-3 pages back, and 'followed' everyone I found so far.
The other courses mentioned on here also look really interesting as well.  At this rate I'll probably spend most of next year in front of my computer.   
