The Web is all about content, which becomes even more relevant under Web 2.0. Search engines such as Google and Yahoo, while remaining important, will be matched in importance by information aggregators like www.flickr.com and http://del.icio.us – sites that allow any Web surfer to describe and rate information found on other Web sites – resulting in user-created metadata, or more simply, data about data. This produces far more relevant results than can be indexed automatically. The beauty of this is that you can benefit from this user-created metadata immediately without any changes to your sites.
With Web 2.0 progression, it will be imperative that your site supports Real Simple Syndication, or RSS, feeds. Consumers in the market to buy a car will visit your site and subscribe to your syndication. Then, anytime you update your specials, or add a vehicle they’re interested in, subscribers will automatically get the new content delivered directly to them. People will expect to have information fed to them immediately, and RSS feeds can provide that service.