We're beginning to rely more on digital services to act as surrogate memory banks, recording our daily lives in more detail than we could hope to do organically. With this in mind, Alzheimer charity Alzheimer Nederland created a particularly clever campaign to help people better understand what it's like to suffer from the degenerative brain disease.

Using photos uploaded to Facebook, people were tagged in events they did not attend, thereby mimicking the same sense of confusion Alzheimer sufferers feel on a daily basis. Despite being relatively simple it's an interesting example of using social media mechanics to make a wider point. It's also interesting as its effectiveness hinges on the rising parallels between our own memory and its digital equivalent.