Web 2.0 for me was mainly about user-generated content like blogs, wikis, social networking etc.
You could do a lot if not all of that before as a tech and not-so-much tech but chances were that you did not. "Blog" made it hip and cool for everyone to write a lot about usually not a lot - but if you wanted to have a website you could very well do so before.
I assume you mean RSS and what followed the blogs back then - but this was not really the main idea of Web 2.0. Web services were happening at the same time but they are not "the" web 2.0, in my opinion.
You could do a lot if not all of that before as a tech and not-so-much tech but chances were that you did not. "Blog" made it hip and cool for everyone to write a lot about usually not a lot - but if you wanted to have a website you could very well do so before.
I assume you mean RSS and what followed the blogs back then - but this was not really the main idea of Web 2.0. Web services were happening at the same time but they are not "the" web 2.0, in my opinion.