Seth Godin on Changing the World

I just wanted to share this with you, if you already have not seen this in TED. It's an interesting look on changing the world. Looking at Seth's bio, it seems that he could be one of the foremost experts in entrepreneurial Internet marketing & communications (including blogging). I think, he explains well one motivation behind creating communities or maybe even blogging (both paid-for-hire or not). I'm still new at this. Let me know what you think?

LINK TO TEDTALK - SETH GODIN http://www.ted.com/talks/view/id/538