Once again, social networking sites Twitter and Facebook are proving to be lifelines in times of crisis.

A devastating 8.9 magnitude earthquake and then a tsunami rocked Japan early Friday morning . The double disaster is reported to have killed hundreds across Japan, and hundreds more are said to be missing.

And the quake and tsunami caused massive damage to buildings and roads, as well as electrical blackouts and intermittent cell phone service.

With so many people unable to physically get to family and friends or to even reach them on the phone, countless people in Japan and around the world took to Twitter and Facebook to reach out to loved ones today.

More: http://www.pcworld.com/article/221934/

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