Many people don’t know the differences between Web 1.0 and Web 2.0, this graphic explains it better.
<img title="differences between web 2.0 and web 1.0" src="https://techtastico.com/files/2006/02/web1-and-web2.jpg" alt="differences between web 2.0 and web 1.0" />
This guide can be useful when you don’t know if a website that you’re viewing is web 1.0 or web 2.0. 
If it don’t clarify your mind, look this <a href="http://underconstruction.networksolutions.com/">Web 1.0</a> and <a href="http://www.writely.com/">Web 2.0</a> 
inspirated in <a href="http://mpt.net.nz/archive/2005/12/27/web-2">this</a>