I hate jumping on this stuff so long after everyone else, but it's a post worth pointing to.
"I’d like you to ignore, for a while, anything that smacks of Web 3.0, or even Web 2.0, or any of the other dumb ideas that distract from production of actual content on the web. Instead, consider these simple things:
* The hurdle to credible publishing on the web, now, is the nine dollars it costs to buy a domain name from GoDaddy, which can be mapped on to a free Tumblr or Blogger space...
* Bursts aren’t contentless, nor do they denote the end of Attention Span. If attention span was dead, JK Rowling wouldn’t be selling paperbacks thick enough to choke a pig, and Neal Stephenson wouldn’t be making a living off books the size of the first bedsit I lived in."