I've written a few times about Web 3.0 before. I have been pretty dismissive to say the least. The definitions keep shifting and none of them particularly convince me that the paradigm change is sufficient enough to justify a version number change.

In recognition of that confusion, there has been a fun competition run by Read/Write Web for a one line description. As part of the converage, James Brown claims that Web 3.0 is actually about better metadata and smart agent-side filtering.

As an example - he cites Particls:

"But perhaps the next step is for it to analyse attention data, like which articles I delete and which I click through; then apply some clever filters appropriately. It looks like Google is on the way to doing this.

And then there's tools like Particls. Formerly called Touchstone, this is a "personalised news and alert service" which monitors the internet, your feeds and other information like your calendar and emails, learns which are important to you, and alerts you in different ways according to their importance."

I do think that intelligent filtering on the agent-side is important (what a surprise hey!) but I am not sure it's called web 3.0. It's called Personalized Aggregation, or Personal Relevancy or Attention Management - and it can fit neatly into the current web.

And next... it needs to move into Media 2.0