There are several services that allow up-to-date comparison of competing companies. One of these is the shopping agent, which will compare specified products or services. Comparison shopping services allow products to be compared by price, delivery date, etc.
More sophisticated systems are also available and these services act as a monitor of web activity by individuals. We can see, for example an increased interest in specific brands or products, we can identify fashions as they emerge. Many devices allow the user to enter several competitors to view daily unique visitors, comparisons by region, sites visitors and keywords used to find these sites. Complex data processing allows estimates of advertising expenditure to be made available.
Here are some links to explore which use blog posts, twitter and new searches to identify “chatter” and create a view of user activity, fashions and company popularity.
http://hotsearches.aol.com about.ask.com/en/docs/iq/iq.shtml
http://www.trendpedia.com
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