Carlo Demarchi has an excellent wrap up of the Web 2.0 conference on his blog at:
http://cdmwebguru.blogspot.com/2009/11/web-20-new-york-1619-nov-2009.html
You'll find some interesting video presentation on his blog post and also available at the links on the bottom of the post.

Here's the post:

Thursday, November 19, 2009
Web 2.0 NEW YORK 16,19 Nov 2009

I intentionally waited some hours before writing about the Web 2.0 NYC conference so that I will only remember what really reached my inner senses and intrigued me.

Richard MacManus has had two articles on the ReadWriteWeb blog about the emerging web trends of 2009 at:
http://www.readwriteweb.com/archives/something_new_in_2009.php (part one)
and:
http://www.readwriteweb.com/archives/web_trends_whats_new_in_2009_part_2... (part two)

Here are the posts:

Web 3.0 or Not, There's Something Different About 2009
Written by Richard MacManus
May 20, 2009

Rob Safuto has a good opinion piece about web services he thinks are doomed on the Awakenend Voice blog at:
http://blog.awakenedvoice.com/2009/05/23/useful-but-doomed-web-services/

Here's the post:

Useful But Doomed Web Services
By Rob Safuto on May 23, 2009

Meg Pickard has a great post on rhe demise of Web 2.0 sites on her Meish.Org blog at:
http://meish.org/2009/05/13/game-web-2over/

Here's the post:

Game Web 2.Over
By Meg Pickard

This collage of web 2.0 logos should be pretty familiar to many people by now. It’s been knocking about for a few years, ever since the whole Web 2.0 Koolaid (what’s the British equivalent? Ribena?) started flowing.

Julie Blaustein reports on Opening Day at Web 2.0 on the Bub.blicio.us blog at:
http://bub.blicio.us/opening-day-for-web-20-expo/

Here's her story:

Opening Day for Web 2.0 Expo
by Julie Blaustein
April 1, 2009