What is Web 2.0? Is it the "read-write" web, the mash-ups or is it just a collection of fancy colored applications?
The name Web 2.0 is already two year old and is "invented" by O'Reilly Media. Just recently they (re)published a report where the Web 2.0 definitions are updated. The report "Web 2.0 Principles and Best Practices" describes 8 basic web 2.0 principles. It is written by John Musser, wellknown from his Programmable Web site.