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Web 2.0?. 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
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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") stickiness --> syndication End of the Software Release Cycle Operations must become a core competency. Google's or Yahoo!'s expertise in product development must be matched by an expertise in daily operations. Users must be treated as co-developers
A Web 2.0 website may typically feature a number of the following techniques: * Rich Internet application techniques, optionally Ajax-based * CSS * Semantically valid XHTMLmarkup and the use of Microformats * Syndication and aggregation of data in RSS/Atom * Clean and meaningful URLs * Extensive use of folksonomies (in the form of tags or tagclouds, for example) * Use of wiki software either completely or partially (where partial use may grow to become the complete platform for the site) * Weblog publishing * Mashups * REST or XMLWebserviceAPIs
Rich Internet Applications • http://www.netvibes.com/ • http://www.google.com/ig
CSS Separazione tra contenuto e presentazione
BEGIN:VCALENDAR PRODID:-//XYZproduct//EN VERSION:2.0 BEGIN:VEVENT URL:http://www.web2con.com/ DTSTART:20051005 DTEND:20051008 SUMMARY:Web 2.0 Conference LOCATION:Argent Hotel\, San Francisco\, CA END:VEVENT END:VCALENDAR
Syndication and aggregation • www.syndic8.com • www.newsisfree.com
folksonomies • http://del.icio.us • http://www.flickr.com/
mashups! • http://www.programmableweb.com • Interazione tra servizi di ‘siti’ diversi