With the Woolwich attack, the two alleged perpetrators engaged with passers-by to explain what they had done - and once the messages "went viral" by text, video, and Twitter, there was no way to stop them.
At least she did, until Adam Smith and Stacy Lambe called it quits (or as they put it, "TTYL") on their explosively viral site Texts From Hillary.
"Combining such new forms with more traditional 2-D media, data visualizations, and informative text, Viral aims to educate members of the public about the complexity of the issue and the many possible approaches towards effective change," she writes.
An image of the young boy in the commercial even went viral, with the text reading "I won't watch Katy Perry because I died in a depressing Nationwide commercial".
He or she is then assigned uniformly at random to one of the six viral load trajectories (Text S1 and Figure S1).
Obama's online operation incorporates everything from viral videos to texting-as-a-grassroots-organizing-tool to social networking sites to its online fundraising juggernaut.
The BastaDobbs.com campaign launched in mid-September, and included online petitions, a viral YouTube video, text-message campaign, radio PSAs and a series of events in 18 cities - organized in conjunction with the CNN special Latino in America.
Along the way, she wrote an essay for Der Spiegel about the experience of being a Russian writer receiving a European prize in 2014, and the Russian text went viral.
Such features as most-viewed lists of blogs, for example, are frowned on at Russian-run sites beholden to the Kremlin, lest a critical text go viral based on user approval.
