I couldn't find a suitable thread so thought I'd start one.
I came across http://abstractgeneratorfactory.blogspot.com/ today which I haven't seen before. I'm not sure if it belongs to one of you here. It's the blog of a professional software developer who is currently trying his hand at building bots. It's well written and he has included lots of details about his quest so far, and is very open about his approach, problems, ideas, and goals. He hasn't quite got there yet but I'm sure he will. I found it very good seeing things from somebody else's perspective.