These include a network of Web cams, which have been helping scientists monitor the volcano for the past eight years.

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SocialEyes uses individual Web cams and assembles the group on the screen.

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Thanks to cheap Web cams and video-friendly instant messaging software, such as Apple 's iChat, keeping in touch via video is easier than ever.

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Sensors, web cams, smartphones all hook into the smart city system.

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The Swiss firm Logitech(13, LOGI) is a small but leading company in PC peripherals like mice, trackballs, keyboards, Web cams, headsets and network music systems--with particular clout in cordless devices.

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"We can continuously observe and record the activity at the summit craters using our Web cams and thermal cameras, which send the images direct to Catania, " Calvari told CNN.

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Thanks to cheap Web cams and video-friendly instant messaging software, such as Apple 's (nasdaq: AAPL - news - people ) iChat, keeping in touch via video is easier than ever.

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Web security cams can be awfully insecure, finds Tom Connor in Ars Technica.

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He says the same surf cams that check the surf also tell a Web surfer when the beach is too crowded.

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If you're not watching the car duke it out in person, you can even tune in over the web and watch a live video stream from one of its onboard cams.

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