Who coined the phrase Web 2.0

If you've been reading my blog, you know that I'm working on my Master's Thesis. Since it involves Web 2.0 technologies, I thought I'd include a section on the history of Web 2.0.

I've found differing options on the origin of Web 2.0. In the book "Blogs, Wikis, MySpace, and more: Everthing you want to know about using web 2.0 but are afraid to ask". by Terry Burrows, I found the following:

"The concept of Web 2.0 came from an Internet media businessman names Tim O'Reily. He and his colleagues coined the phrase in 2003, and it became public at the first Web 2.0 conference a year later."

In "How to do Everything with Your Web 2.0 Blog" by Todd Stauffer, it says:

"The term "Web 2.0" was coined by Dale Dougherty in a brainstorming session with book publisher Tim O'Reilly at a conference in late 2005, and while it wasn't perfectly well-defined at the time, it was meant to suggest the next generation of Web applications that were turning the Web froma sort of static experience into a more acitve -- maybe "useful -- one. "

So when was the term coined? 2003? 2005? I guess it is time to google....