Web 2.0 and online collaboration

I was reading through the Business Week Site today, it really does sound like people are catching on to the idea that email is second place to other collaboration technologies. They are talking, in the sense of enterprise 2.0, that we could look at what the kids are doing. They are probably not using email for everything and prefer social networking sites, chat, and blogs. If you take blogs for instance, rather than sending out an email to all your friends with photos, you could post a blog entry and those who are interested, would know already through a RSS feed reader. Now, if you turn that around to a project situation, it would say that you should not send an email to everyone in the project for every task you do, but just post it in your collaboration space and they can access the information on their terms when they are working on the project.