I think federal agencies should blog more. That includes EPA.
Starting today this blog is going to broaden its purview. You will see more EPA employees blogging about more topics. There won't be any more "Guest Blogs." Every entry will have its own byline showing who the author is. They'll all be open to comments.
Just because the Flow of the River will be broader, doesn't mean it will be slower. I, for instance, will continue to blog under my own byline. There will be a lot more entries on a lot more topics. You'll also start seeing more improvements to the look and feel of the blog. Unlike a real river, the Flow is getting wider and stronger.