Twitter: Some love it while others would never even think of using the service that lets other people know what you are currently doing. Still it is widely popular and third party applications are beginning to be published that take advantage of this popularity.

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If you are using Twitter regularly you might find the Twitter real time search script handy. Tweet Scan makes it possible to search in real time for keywords on Twitter. The result of the search is displayed on a individual page that can be bookmarked or subscribed in your favorite RSS reader. If you would for instance want to stay updated on anything related to Yahoo you could search for Yahoo and add the RSS feed to your reader.

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