Hi, Fiona, this is Bob Sutor.
Thanks for all the attention you've given my blog. It's definitely something that is evolving as am I in my thinking about it and how to make it effective. One thing that might be interesting to look at is the pschology of the blog in the sense that they ebb and flow in terms on content and whether they seem to be upbeat or less optimistic. You asked me in the comment to my blog if it is fine to address me as "Bob" in the comments. Absolutely! Note, though, that if someone uses a very formal name in their Blog "Dr So and So" then it is probabbly best to use the title. This is probably more applicable outside the US, but people should bear it in mind.