... but when I have to I'm going to start using the phrase social media instead of Web 2.0.

Social Media in Plain English from leelefever on Vimeo. Based on my experiences, I think the use of Web 2.0 is just too confusing and too many people get caught up in tools. I think that social media does a better job of getting at the social nature of learning and the new means in which anyone can create, publish, and participate.