The idea, though, of lifestreams has been catching on. A lifestream is a way of organizing digital objects—photos, emails, documents, Web links, music—in a time-ordered series. A timeline, in essence, that extends into the past but also the future (with appointments, to-do lists, etc.). Facebook, with its "wall" constantly updated with postings by you and your friends, is a lifestream. Twitter's feed is a lifestream. "Chatter," developed by Salesforce.com for internal use by client companies, is a lifestream.Rethinking the Digital Future
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