Google Search – blogs vs. usenet or why there’s no one community

It really is funny how these things work – last night I was lying in bed reflecting on the phenomenom I’ve been experiencing as a blogger in relation to other types of discussion or conferencing software I’ve used in the past (usenet, mailing lists, threaded discussions…)  and then this morning I come into work and see this post from David Wiley – (Will the “real” community please stand up?), and this one by George Siemens (Current Edu-bloggers).