Social Media - one of those ‘need-to-know-about-this’ items on your list, if you have a message or product.  

Spending some time to learn about it is a good thing.  As my friend  http://twitter.com/connieldavis referenced in her EARLY morning tweet today, Education ‘helps brain compensate for dementia changes’, from this BBC release

It’s social.  It fights dementia.  It helps your organization or business. Sounds OK!