John Herren has posted his notes from the (just passed) Web Builder 2.0 Conference that happened over in Las Vegas. PHP had its presence there through John's "PHP Powers Mashups" talk and others like Chris Shiflett.

There was plenty to see and do at the conference besides PHP and John highlights just a few:

• AJAX Optimization talks
• An overview of some Flickr Stats
• Google's mashup offerings
• An introduction to
• and some talk of benchmarking Ajax