Web 2.0?. Web 1.0 Web 2.0 DoubleClick --> Google AdSense Ofoto --> Flickr Akamai --> BitTorrent mp3.com --> Napster Britannica Online --> Wikipedia personal. - ppt download
Google dictionary gives you a definition just by double-clicking a word
The Doubleclicks - Wikipedia
internet explorer 10 - What are all these "ad.doubleclick.net" pages I'm secretly visiting? - Super User