If you never liked the term "blogosphere", here's a new word to appall you: syndisphere. It's not in Google at the moment but I've seen it pop up in at least two major blogs. I'm not sure the word is useful, but here's as close as any explanation you'll find:
http://blogs.zdnet.com/Gillmor/index.php?p=78&part=rss&tag=feed&subj=zdblog