For decades businesses have updated their computer networks by bolting fancy features like interactive Web sites onto old, brittle networks cluttered with arcane code.

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While Obama's staffers have stopped posting updates on social networking sites since the election, they are sill reaching constituents through WhiteHouse.gov, which is more interactive than previous administrations' Web sites.

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Web sites will add interactive links between fans and the channels.

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So, go to your political Web sites that have interactive maps, including ours, and try to figure out how each of these candidates gets to the magic number of 270 votes.

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Lulu books are available on e-readers like the Kindle, and they will be available on the iPad. iPad books will be in color and have interactive features like videos and links to related Web sites.

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As president and editor-in-chief of CNN Interactive, Scott Woelfel is responsible for 11 CNN Web sites, notably the award-winning CNN.com, AllPolitics.com and CNNfn.com (CNN's business and financial news site).

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Importantly, the company currently has more than 1 million paying subscribers and visitors to the Web sites are viewing 1.6 million minutes of live interactive video each month.

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Accel Partners began inserting the provision in early-stage rounds for portfolio companies like Mpath Interactive, which makes software to build communities (say, of karaoke fans) on Web sites.

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It was used by sites like YouTube to deliver web video, and it was a popular way to deliver interactive applications.

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