Blogs at Penn State Community

Is there any way to do a search of all the comments in a blog and then sort them by commenter? For example, if I had a class blog, and I wanted to see how many time Jane Doe has commented on the entries in the blog, is there any way to do that? I should clarify that I would like to be able to do this in the blog, not in the blog tool (as the author). I know that I can do this within the tool. but it may be more advantageous at times if I could do it in the blog itself.