Which Web is Which?

I started taking Web 2.0 because I thought it'd be a great introduction in utilizing technology (in a fun way) for learning and instructional design. I did little to research the name when I signed up for the course, but am glad that the first week of classes is spent covering this concept. While I'm still a bit hesitant to say that I understand the full concept, I believe I can somewhat differentiate the webs (1.0, 2.0, and 3.0).

In terms of Web 2.0, I turned to O'Reilly's article (2005) which I've linked here. What was really helpful was this meme map that O'Reilly and colleagues put together (obtained from the link above):

In times of doubt, I will utilize this map to identify which sites are which web; and for further review and discussion of which web is which, I have Brian Getting (2007) to thank (linked here).