You'd have to be hiding under a rock not to notice the polar plunge ice challenge going viral on Facebook and in the media at the moment.
I'm not sure whether I'm chicken or clever, but what I do know is that I'm not particularly keen to freeze my bits and pieces off getting ice-cold water dumped over me in the middle of winter. Instead I'll be donating as my solidarity for the cause.
Whether people decide to take the plunge, donate instead or do some other action to support the cause, what has been highlighted magnificently for me in all this once again is the power of social media. "Going viral" 10 years ago meant you were getting the flu - these days it's what a video or something does when it's shared and multiplied like crazy across the world from person to person online.
This Polar Plunge Ice Challenge is one such example of a cause gone viral and virtually no one connected to the modern social media world is immune from being infected or having it catch them.
Its tentacles reach far too. In the old days one might be lucky for their campaign to reach the lamppost on their street corner in the form of a poster, a story in their local newspaper or perhaps a tiny bit of national TV news coverage if they're really really lucky. These days when you chuck something up on Facebook or other social media platform it can be sent or shared near instantaneously with networks that span across nations, time zones and the world at large.