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Table 3 Differences between Web 1.0 and Web 2.0.

From: Accuracy improvements for cold-start recommendation problem using indirect relations in social networks

Web 1.0

Web 2.0

DoubleClick

Google AdSense

Ofoto

Flickr

Akamai

BitTorrent

mp3.com

Napster

Britannica online

Wikipedia

Personal websites

Blogging

Evite

Upcoming.org and EVDB

Domain name speculation

Search engine optimization

Page views

Cost per click

Screen scraping

Web services

Publishing

Participation

Content management systems

Wikis

Directories (taxonomy)

Tagging (“folksonomy”)