A lot of what happens on the internet is criticised as having no impact and being just plain narcissism. Well…

“Dismissed by some at the time as “slacktivism” – an exercise that appears to do good while achieving very little – the ice bucket challenge raised more than $115m (£88m) for motor neurone disease in a single month. Now, scientists funded with the proceeds have discovered a gene variant associated with the condition.”

How the ice bucket challenge led to an ALS research breakthrough