Role of social media in emergency situations

The bombing that happened at the Boston Marathon this afternoon was such a dreadful news to hear. I really don't get why things like this occurs. It is supposed to be an even in which everyone's all cheerful and such. The photos on CNN are pretty graphic and very saddening indeed. My prayers and thoughts go to those who were affected.

A moment ago I logged on to my twitter account and I can see all sorts of tweets related to the incident. I found one interesting tweet, which posted a link to the "Google Person Finder". I never knew something like this existed! (Yes I was surprised!) It certainly serves as a great example of how the internet can help during incidents like this. The Boston Marathon official twitter account is also sending live commentaries to inform people about all the related issues such as baggage claims. People has been using various hashtags such as #bostonhelp to post blood donation announcements, links to different charity groups, and even links to a list with contact informations that people offers to accomodate the runners for a night or two. It's really heartwarming to see such thing happening within just few hours.

This incident, though it is uncertain whether it's a terrorist attack or not, reminded me of 911 attack back in 2001. It makes me wonder what role would social media play in situations like this (including any other emergency situations). I am certain that social media can help everyone stay connected--- many people are certainly willing to help those who were affected in any possible way they can, just like those who are offering a free place to say for the marathon runners!

p.s. see some screenshots of #bostonhelp here