Web 1.0 vs. Web 2.0

Joe (one of our clients) has written a little comparative analysis of Web 1.0 vs. Web 2.0:

• Web 1.0 was about reading, Web 2.0 is about writing
• Web 1.0 was about companies, Web 2.0 is about communities
• Web 1.0 was about client-server, Web 2.0 is about peer to peer
• Web 1.0 was about HTML, Web 2.0 is about XML
• Web 1.0 was about home pages, Web 2.0 is about blogs

He has about 15 such points. Here are a couple more, off the top of my head:

• Web 1.0 was about lectures, Web 2.0 is about conversation
• Web 1.0 was about advertising, Web 2.0 is about word of mouth
• Web 1.0 was about services sold over the web, Web 2.0 is about web services